Equipamentos para Laboratrio de - para Laboratrio de Dinmica de Mquinas Milrian Mendes: +55

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  • Equipamentos para Laboratrio de

    Dinmica de Mquinas

    Milrian Mendes: +55 81 99786-6527 (Recife)

    milrian@setuplasers.com.br

    Eliasibe Luis: +55 51 9 9706-4541 (Porto Alegre)

    eliasibe.luis@setuplasers.com.br

    www.setuplasers.com.br/kit4labs

    Caso seja necessrio, nos pea a traduo para o Portugus do contedo a seguir.

    Esses equipamentos fazem parte do catlogo 1 da GUNT Engineering Mechanics &

    Engineering Design. Acesse-o pelo link:

    https://www.dropbox.com/sh/vi2u6j20aw68b9p/AACtxjdTEet9BNQVaOSyiV2Va?dl=0

    www.setuplasers.com.br/kit4labshttps://www.dropbox.com/sh/vi2u6j20aw68b9p/AACtxjdTEet9BNQVaOSyiV2Va?dl=0

  • gunt Machine dynamics

    Engineering mechanics and engineering design

    183182

    4

    Machine dynamics

    Introduction

    Basic knowledgeMachine dynamics 184

    Vibrations in machines

    TM 155Free and forced vibrations 188

    TM 150.02Free and damped torsional vibrations 190

    TM 155.20System for data acquisition 191

    TM 140Rotational vibrations 192

    HM 159.11Natural vibration on a ship model 194

    Rotor dynamics

    TM 620Bending elasticity in rotors 196

    TM 625Elastic shafts 198

    TM 620.20System for data acquisition 200

    Balancing

    TM 170Balancing apparatus 202

    PT 502Field balancing 204

    Mass forces and mass balance

    TM 180Forces in reciprocating engines 206

    GL 112Investigation of cam mechanisms 208

    Vibration isolation

    TM 182Vibrations on machine foundations 210

    TM 182.01Piston compressor for TM 182 212

    Machinery diagnosis

    OverviewMachinery diagnosis 214

    PT 501Roller bearing faults 220

    OverviewPT 500 Machinery diagnostic system 222

    PT 500Machinery diagnostic system, base unit 224

    PT 500-Classification Experimentation kitsand required/optional components 226

    PT 500.01Laboratory trolley 227

    PT 500.04Computerised vibration analyser 228

    PT 500.05Brake & load unit 230

    PT 500.10Elastic shaft kit 232

    PT 500.11Crack detection in rotating shaft kit 234

    PT 500.12Roller bearing faults kit 236

    PT 500.13Couplings kit 238

    PT 500.14Belt drive kit 240

    PT 500.15Damage to gears kit 242

    PT 500.16Crank mechanism kit 244

    PT 500.17Cavitation in pumps kit 246

    PT 500.18Vibrations in fans kit 248

    PT 500.19Electromechanical vibrations kit 250

  • gunt Machine dynamics

    Engineering mechanics and engineering design

    183182

    4

    Machine dynamics

    Introduction

    Basic knowledgeMachine dynamics 184

    Vibrations in machines

    TM 155Free and forced vibrations 188

    TM 150.02Free and damped torsional vibrations 190

    TM 155.20System for data acquisition 191

    TM 140Rotational vibrations 192

    HM 159.11Natural vibration on a ship model 194

    Rotor dynamics

    TM 620Bending elasticity in rotors 196

    TM 625Elastic shafts 198

    TM 620.20System for data acquisition 200

    Balancing

    TM 170Balancing apparatus 202

    PT 502Field balancing 204

    Mass forces and mass balance

    TM 180Forces in reciprocating engines 206

    GL 112Investigation of cam mechanisms 208

    Vibration isolation

    TM 182Vibrations on machine foundations 210

    TM 182.01Piston compressor for TM 182 212

    Machinery diagnosis

    OverviewMachinery diagnosis 214

    PT 501Roller bearing faults 220

    OverviewPT 500 Machinery diagnostic system 222

    PT 500Machinery diagnostic system, base unit 224

    PT 500-Classification Experimentation kitsand required/optional components 226

    PT 500.01Laboratory trolley 227

    PT 500.04Computerised vibration analyser 228

    PT 500.05Brake & load unit 230

    PT 500.10Elastic shaft kit 232

    PT 500.11Crack detection in rotating shaft kit 234

    PT 500.12Roller bearing faults kit 236

    PT 500.13Couplings kit 238

    PT 500.14Belt drive kit 240

    PT 500.15Damage to gears kit 242

    PT 500.16Crank mechanism kit 244

    PT 500.17Cavitation in pumps kit 246

    PT 500.18Vibrations in fans kit 248

    PT 500.19Electromechanical vibrations kit 250

  • Basic knowledge

    Machine dynamics

    Machine dynamicsIntroduction gunt4

    What are machine dynamics?

    Machine dynamics refer to the study of a systems motion based on the forces acting on the system.

    Machine dynamics apply knowledge of engineering mechanics, especially dynamics, to the problems of real machines. The effect of inertia and the occurrence of vibrations play a major role here. Machine dynamics make it possible to predict the vibrational behaviour of a machine and, where possible, to compensate it. Depending on the task, the vibrations may be desired (shakers, vibrating conveyors) or undesired (engines, turbines).

    Methods from vibration measuring technology are used to assess and evaluate vibrations. There are also close links to the fields of engineering design, machine elements and drive sys-tems.

    When do vibration problems occur?

    Vibration problems may occur if the following two conditions are met:

    periodic excitation forces vibratory system

    The illustration shows the increase in vibrations when passing through the resonance of a vibratory system. The very high vibration amplitudes can lead to the destruction of the machine. In practice, therefore, such resonances or critical speeds if they cannot be avoided must be quickly surpassed.

    Minimising undesired vibrations using the example of a ships engine system:

    1 diesel engine equipped with mass balancing, 2 balanced generator, 3 spring-loaded support for vibration isolation, 4 reinforced ship structure to make the system more rigid

    Vibrations should be combated at the source wherever possible. Thus, the procedure should follow the priorities presented here:

    minimise excitation forces by balancing or mass balancing

    prevent propagation of the forces by isolating the vibrations or absorbing the vibrations

    reduce vibratory capacity of the system by making the components more rigid, applying additional mass or using dampers

    Machine dynamics play a prominent role in modern mechanical engineering. The requirements of lightweight construction and ever greater power-to-weight ratios make machines particularly susceptible to harmful vibrations. Machine dynamics provide ways and means to address these problems.

    Measures to avoid vibration problems

    {!(2

    {!(3

    {!(1

    {!(4

    y(t)

    Zeit t

    Excitation of vibrations with

    possible resonance

    Rotating or swinging masses generate periodic excitation forces

    Mass, flexibility and low damping

    create an vibratory system

    Resonance with amplitude peaking

    185184

  • Basic knowledge

    Machine dynamics

    Machine dynamicsIntroduction gunt4

    What are machine dynamics?

    Machine dynamics refer to the study of a systems motion based on the forces acting on the system.

    Machine dynamics apply knowledge of engineering mechanics, especially dynamics, to the problems of real machines. The effect of inertia and the occurrence of vibrations play a major role here. Machine dynamics make it possible to predict the vibrational behaviour of a machine and, where possible, to compensate it. Depending on the task, the vibrations may be desired (shakers, vibrating conveyors) or undesired (engines, turbines).

    Methods from vibration measuring technology are used to assess and evaluate vibrations. There are also close links to the fields of engineering design, machine elements and drive sys-tems.

    When do vibration problems occur?

    Vibration problems may occur if the following two conditions are met:

    periodic excitation forces vibratory system

    The illustration shows the increase in vibrations when passing through the resonance of a vibratory system. The very high vibration amplitudes can lead to the destruction of the machine. In practice, therefore, such resonances or critical speeds if they cannot be avoided must be quickly surpassed.

    Minimising undesired vibrations using the example of a ships engine system:

    1 diesel engine equipped with mass balancing, 2 balanced generator, 3 spring-loaded support for vibration isolation, 4 reinforced ship structure to make the system more rigid

    Vibrations should be combated at the source wherever possible. Thus, the procedure should follow the priorities presented here:

    minimise excitation forces by balancing or mass balancing

    prevent propagation of the forces by isolating the vibrations or absorbing the vibrations

    reduce vibratory capacity of the system by making the components more rigid, applying additional mass or using dampers

    Machine dynamics play a prominent role in modern mechanical engineering. The requirements of lightweight construction and ever greater power-to-weight ratios make machines particularly susceptible to harmful vibrations. Machine dynamics provide ways and means to address these problems.

    Measures to avoid vibration problems

    {!(2

    {!(3

    {!(1

    {!(4

    y(t)

    Zeit t

    Excitation of vibrations with

    possible resonance

    Rotating or swinging masses generate periodic excitation forces

    Mass, flexibility and low damping

    create an vibratory system

    Resonance with amplitude peaking

    185184

  • Basic knowledge

    Machine dynamics

    Machine dynamicsIntroduction gunt4

    In machine dynamics, real machines are represented by the-oretical models. More often than not, however, machines are very complicated and not easy to calculate. By simplification and abstraction, mathematical models can be obtained for both

    vibratory systems and for the sources of excitation forces. Using these mathematical models, it is relatively quick and easy to predict the behaviour of the machine.

    Linear vibratory system with one or more degrees of freedom

    The simplest model of an vibratory system is the spring-mass system. This model provides many insights into the behaviour of an vibratory system. Often the rigidity and mass distributions of a real system can be described sufficiently well by using concentrated point masses and inertia-free springs.

    Continuous vibratory system

    Similarly, simple systems exist for continuous vibration systems such as a ships hull. In this case, a simple-beam model provides initial indications of the vibratory behaviour when excited by ocean waves. Natural frequencies and their associated natural modes are of interest here.

    Reciprocating engines

    Machine dynamics play an important role in reciprocating engines. Various inertia forces are produced by large back-and-forth and rotating masses. These forces can cause con-siderable vibration problems in a poor design. The resulting inertia forces can be kept small by distributing the masses over several cylinders, suitable kinematic ratios and the arrangement of balancing masses. This enables a low-vibra-tion operation of the reciprocating engine.

    Cam mechanism

    Cam mechanisms are used to convert a rotating motion into a back-and-forth motion. Cam mechanisms are used as a valve drive in engines or in packing machines. Poorly designed cam mechanisms produce high accelerations and inertia forces. This results in vibrations and noise. The application of machine dynamics allows a design with the lowest possible loads and vibrations.

    Machine foundations and supports to isolate vibrations

    Machine foundations or supports are designed so that the transmission of vibrations from the machine to the environ-ment is largely prevented. This prevents unpleasant vibrations of buildings, plants or motor vehicles. This is known as vibra-tion isolation. Using the methods of machine dynamics, the properties of the machine supports are determined and the effects on the environment are calculated.

    Rotor dynamics

    Rotating machines can cause vibrations due to rotating masses. In elastic rotors, the rotating inertia forces can cause bending vibrations and resonances. Similarly, a non-uniform rotation can cause torsional vibrations.

    Knowledge of bending-critical and torsion-critical speeds is essential for the design and subsequent operation of the machine.

    Balancing rotors

    The vibrations on rotating machines can be reduced through balancing. In this process, the excitation forces caused by the rotating masses are minimised. We attempt to match the centre of gravity and the axis of inertia of the rotor with the axis of rotation by applying or removing masses. This method is particularly useful, as balancing eliminates the cause of the vibrations.

    GUNT offers an extensive range of experimental units in the field of machine dynamics. The programme is based on a typical curriculum for machine dynamics. Furthermore, units are available for vibration measuring methods and machine diagnosis.

    Contents of machine dynamics

    Linear vibratory systems with one degree of freedom TM 150, TM 150.02, TM 155

    Linear vibratory systems with several degrees of freedom TM 150, TM 140, TM 182

    Vibrations in continuous systems HM 159.11, TM 625

    Rotor dynamics, bending-critical speeds TM 620, TM 625, PT 500.10

    Balancing technology TM 170, PT 500, PT 500.10, PT 502

    Machine dynamics in reciprocating engines TM 180, PT 500.16

    Vibrations on crank drives GL 112

    Vibration isolation TM 182, TM 182.01

    Vibration measuring equipment and fundamentals of frequency analysis

    PT 500 ff, HM 159.11, TM 182

    Machinery status monitoring PT 500 ff, PT 501

    Spring-mass system

    Crank mechanism

    Camshaft with roller plunger

    Imbalance generator on spring-loaded foundation

    Second order natural frequency of a ships hull

    Elastic shaft with mass disk

    Rotor with points for mass balancing

    187186

  • Basic knowledge

    Machine dynamics

    Machine dynamicsIntroduction gunt4

    In machine dynamics, real machines are represented by the-oretical models. More often than not, however, machines are very complicated and not easy to calculate. By simplification and abstraction, mathematical models can be obtained for both

    vibratory systems and for the sources of excitation forces. Using these mathematical models, it is relatively quick and easy to predict the behaviour of the machine.

    Linear vibratory system with one or more degrees of freedom

    The simplest model of an vibratory system is the spring-mass system. This model provides many insights into the behaviour of an vibratory system. Often the rigidity and mass distributions of a real system can be described sufficiently well by using concentrated point masses and inertia-free springs.

    Continuous vibratory system

    Similarly, simple systems exist for continuous vibration systems such as a ships hull. In this case, a simple-beam model provides initial indications of the vibratory behaviour when excited by ocean waves. Natural frequencies and their associated natural modes are of interest here.

    Reciprocating engines

    Machine dynamics play an important role in reciprocating engines. Various inertia forces are produced by large back-and-forth and rotating masses. These forces can cause con-siderable vibration problems in a poor design. The resulting inertia forces can be kept small by distributing the masses over several cylinders, suitable kinematic ratios and the arrangement of balancing masses. This enables a low-vibra-tion operation of the reciprocating engine.

    Cam mechanism

    Cam mechanisms are used to convert a rotating motion into a back-and-forth motion. Cam mechanisms are used as a valve drive in engines or in packing machines. Poorly designed cam mechanisms produce high accelerations and inertia forces. This results in vibrations and noise. The application of machine dynamics allows a design with the lowest possible loads and vibrations.

    Machine foundations and supports to isolate vibrations

    Machine foundations or supports are designed so that the transmission of vibrations from the machine to the environ-ment is largely prevented. This prevents unpleasant vibrations of buildings, plants or motor vehicles. This is known as vibra-tion isolation. Using the methods of machine dynamics, the properties of the machine supports are determined and the effects on the environment are calculated.

    Rotor dynamics

    Rotating machines can cause vibrations due to rotating masses. In elastic rotors, the rotating inertia forces can cause bending vibrations and resonances. Similarly, a non-uniform rotation can cause torsional vibrations.

    Knowledge of bending-critical and torsion-critical speeds is essential for the design and subsequent operation of the machine.

    Balancing rotors

    The vibrations on rotating machines can be reduced through balancing. In this process, the excitation forces caused by the rotating masses are minimised. We attempt to match the centre of gravity and the axis of inertia of the rotor with the axis of rotation by applying or removing masses. This method is particularly useful, as balancing eliminates the cause of the vibrations.

    GUNT offers an extensive range of experimental units in the field of machine dynamics. The programme is based on a typical curriculum for machine dynamics. Furthermore, units are available for vibration measuring methods and machine diagnosis.

    Contents of machine dynamics

    Linear vibratory systems with one degree of freedom TM 150, TM 150.02, TM 155

    Linear vibratory systems with several degrees of freedom TM 150, TM 140, TM 182

    Vibrations in continuous systems HM 159.11, TM 625

    Rotor dynamics, bending-critical speeds TM 620, TM 625, PT 500.10

    Balancing technology TM 170, PT 500, PT 500.10, PT 502

    Machine dynamics in reciprocating engines TM 180, PT 500.16

    Vibrations on crank drives GL 112

    Vibration isolation TM 182, TM 182.01

    Vibration measuring equipment and fundamentals of frequency analysis

    PT 500 ff, HM 159.11, TM 182

    Machinery status monitoring PT 500 ff, PT 501

    Spring-mass system

    Crank mechanism

    Camshaft with roller plunger

    Imbalance generator on spring-loaded foundation

    Second order natural frequency of a ships hull

    Elastic shaft with mass disk

    Rotor with points for mass balancing

    187186

  • Machine dynamicsVibrations in machines gunt4 gunt

    TM 155Free and forced vibrations

    1 imbalance exciter, 2 rigid bar as discrete oscillator, 3 damper, 4 control unit for imbal-ance exciter, 5 drum recorder for recording vibrations, 6 suspension and vibration spring

    a) displacement exciter with rigid coupling rod K, b) imbalance exciter with eccentricallymounted flywheel disk M

    Modes of vibration for varying damping D: a) no damping, D = 0, continuous vibration, b) lowdamping, 0 < D < 1, c) D=1, aperiodic limit case, d) strong damping, D > 1, creep case;y elongation, t time

    Specification

    [1] fundamentals of mechanical vibration theory; free,damped and forced vibrations

    [2] bar-type oscillator[3] 3 coil springs[4] imbalance exciter with DC motor[5] displacement exciter with DC motor[6] electronic control unit with digital display, adjustable

    excitation frequency[7] damper with oil fill[8] electrically driven drum recorder[9] amplitude meter with electrical contact for trigger-

    ing devices[10] storage system for parts

    Technical data

    Bar-type oscillator: LxWxH: 700x25x12mm, 1,6kg

    Coil springs 0,75N/mm 1,5N/mm 3,0N/mm

    Exciter frequency: 050Hz, electronically controlledImbalance of the imbalance exciter: 01000mmgStroke of the displacement exciter: 20mmDamper constant: 515Ns/m, oil-filled

    Mechanical drum recorder feed: 20mm/s paper width: 100mm

    LxWxH: 1000x420x900mmFrame opening WxH: 870x650mmWeight: approx. 52kgStorage system:LxWxH: 1170x480x237mmWeight: approx. 12kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase (control unit for imbalance exciter)

    Scope of delivery

    1 experimental unit1 bar-type oscillator3 coil springs1 imbalance exciter1 displacement exciter1 control unit for imbalance exciter1 damper1 amplitude meter1 drum recorder1 storage system with foam inlay1 set of instructional material

    Order number 040.15500

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntTM 155Free and forced vibrations

    x

    Description

    demonstration of basic funda-mentals of mechanical vibrationtechnology

    damping and resonance in forcedvibrations

    two different principles of vibra-tional excitation

    Forced vibrations occur in a variety ofways in engineering. While they are de-sirable in vibrating screens or vibratingconveyors, they are often unwanted inengines or other rotating machines. TheTM 155 experimental unit clearlydemonstrates the fundamentals neededto deal with free and forced vibrations.The differences between the two maintypes of excitation for forced vibrationscan be shown on a simple vibration mod-el.

    The central element of the experimentalunit is a sturdy aluminium profile frameto which the different experimentalsetups are attached. A bar-type oscillat-or is used as the vibration system. Thisoffers easy and flexible configuration.

    The spring, damper and vibration excitercan be mounted in any position. An im-balance exciter and a displacement ex-citer are available for spring base-pointexcitation.

    The excitation frequency is set and dis-played on a control unit. An oil hydraulicdamper allows damped vibrations withadjustable damping level. A mechanicaldrum recorder offers the option of re-cording the vibrations. The measuredvalues can be displayed and analysed ona PC using the optional TM 155.20 unitfor data acquisition. A demonstrationunit for torsional vibrations (TM 150.02)is available as an accessory.

    Learning objectives/experiments

    free vibrations damped vibrations inertia force and displacement excita-

    tion forced vibrations resonance amplitude response and phase re-

    sponse

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016189188

  • Machine dynamicsVibrations in machines gunt4 gunt

    TM 155Free and forced vibrations

    1 imbalance exciter, 2 rigid bar as discrete oscillator, 3 damper, 4 control unit for imbal-ance exciter, 5 drum recorder for recording vibrations, 6 suspension and vibration spring

    a) displacement exciter with rigid coupling rod K, b) imbalance exciter with eccentricallymounted flywheel disk M

    Modes of vibration for varying damping D: a) no damping, D = 0, continuous vibration, b) lowdamping, 0 < D < 1, c) D=1, aperiodic limit case, d) strong damping, D > 1, creep case;y elongation, t time

    Specification

    [1] fundamentals of mechanical vibration theory; free,damped and forced vibrations

    [2] bar-type oscillator[3] 3 coil springs[4] imbalance exciter with DC motor[5] displacement exciter with DC motor[6] electronic control unit with digital display, adjustable

    excitation frequency[7] damper with oil fill[8] electrically driven drum recorder[9] amplitude meter with electrical contact for trigger-

    ing devices[10] storage system for parts

    Technical data

    Bar-type oscillator: LxWxH: 700x25x12mm, 1,6kg

    Coil springs 0,75N/mm 1,5N/mm 3,0N/mm

    Exciter frequency: 050Hz, electronically controlledImbalance of the imbalance exciter: 01000mmgStroke of the displacement exciter: 20mmDamper constant: 515Ns/m, oil-filled

    Mechanical drum recorder feed: 20mm/s paper width: 100mm

    LxWxH: 1000x420x900mmFrame opening WxH: 870x650mmWeight: approx. 52kgStorage system:LxWxH: 1170x480x237mmWeight: approx. 12kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase (control unit for imbalance exciter)

    Scope of delivery

    1 experimental unit1 bar-type oscillator3 coil springs1 imbalance exciter1 displacement exciter1 control unit for imbalance exciter1 damper1 amplitude meter1 drum recorder1 storage system with foam inlay1 set of instructional material

    Order number 040.15500

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntTM 155Free and forced vibrations

    x

    Description

    demonstration of basic funda-mentals of mechanical vibrationtechnology

    damping and resonance in forcedvibrations

    two different principles of vibra-tional excitation

    Forced vibrations occur in a variety ofways in engineering. While they are de-sirable in vibrating screens or vibratingconveyors, they are often unwanted inengines or other rotating machines. TheTM 155 experimental unit clearlydemonstrates the fundamentals neededto deal with free and forced vibrations.The differences between the two maintypes of excitation for forced vibrationscan be shown on a simple vibration mod-el.

    The central element of the experimentalunit is a sturdy aluminium profile frameto which the different experimentalsetups are attached. A bar-type oscillat-or is used as the vibration system. Thisoffers easy and flexible configuration.

    The spring, damper and vibration excitercan be mounted in any position. An im-balance exciter and a displacement ex-citer are available for spring base-pointexcitation.

    The excitation frequency is set and dis-played on a control unit. An oil hydraulicdamper allows damped vibrations withadjustable damping level. A mechanicaldrum recorder offers the option of re-cording the vibrations. The measuredvalues can be displayed and analysed ona PC using the optional TM 155.20 unitfor data acquisition. A demonstrationunit for torsional vibrations (TM 150.02)is available as an accessory.

    Learning objectives/experiments

    free vibrations damped vibrations inertia force and displacement excita-

    tion forced vibrations resonance amplitude response and phase re-

    sponse

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016189188

  • Machine dynamicsVibrations in machines guntgunt

    VORLAGEMomentengleichgewicht am zweiarmigen Hebel

    Beschreibung

    Grundlagen des Momentengleich-gewichts und Anwendung des He-belgesetzes

    Mit EM 049 werden am Beispiel eineszweiarmigen Hebels die Grundlagen desMomentengleichgewichts untersucht.Auftretende Momente am Hebel sollenins Gleichgewicht gebracht werden.

    Ein mittig gelagerter Balken stellt einenzweiarmigen Hebel dar. Auf den Hebel

    werden verschiebbare Reiter gesetztund Gewichte aufgebracht. Durch Ver-schieben der Gewichte wird ein Gleich-gewicht eingestellt. Abstnde vom Dreh-punkt, die Hebelarme, knnen auf einerintegrierten Skala abgelesen werden.Die Berechnung der Hebelarme wird imVersuch berprft.

    Eine Standsule trgt den Hebel, einestabile Grundplatte gewhrleistet siche-ren Stand.

    Lerninhalte/bungen

    Grundlagen des Momentengleichge-wichts: angreifende Krfte, erzeugteMomente und Gleichgewicht

    Wirkung von Krften in Abhngigkeitvom Hebelarm

    Spezifikationen

    [1]Untersuchung des Momentengleich-gewichts am zweiarmigen Hebel

    [2] kugelgelagerter Balken mit integrier-tem Mastab als zweiarmiger Hebel

    [3]stabiler, standfester Rahmen ausMetall

    [4]Aufbewahrungssystem fr die Teile

    Technische Daten

    Balken LxBxH: 600x30x10mm, mittig kugel-

    gelagert Hebellnge: 2x 300mmGewichte 3x 1N (Hnger) 6x 5N 12x 1N

    LxBxH: 600x300x410mmGewicht: ca. 10kgAufbewahrungssystem:LxBxH: 200x70x40mmLxBxH: 95x68x35mm

    Lieferumfang

    1 Versuchsgert1 Satz Gewichte1 Satz didaktisches Begleitmaterial

    Artikel-Nummer 049.04900

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    Wir behalten uns das Recht vor, technische nderungen ohne Ankndigung vorzunehmen. Seite 1/1 - 08.2016

    VORLAGE

    4 guntTM 155.20System for data acquisition

    x

    Description

    measurement and illustration offrequency and phase response

    digital storage oscilloscope

    This system for data acquisition is an ad-dition to the experimental unit TM 155and makes it possible to analyse vibra-tion signals on a PC. Frequency andphase response curves can be easilygenerated, saved and output using thissystem. The system also offers all theessential functions of a digital storageoscilloscope and can calculate the fre-quency spectra of the signals.

    In addition to the software, a displace-ment sensor and a reference sensor,the system also includes an interfacebox. The box supplies up to threesensors, prepares their measuring sig-nals for the PC and offers them to threeanalogue outputs for display.

    All components of the system are readyat hand and securely housed in a stor-age system.

    Learning objectives/experiments

    supported experiments with TM 155 natural vibration of a bar-type oscil-

    lator damped vibration of a bar-type oscil-

    lator forced vibration of a bar-type oscillat-

    or (damped and undamped reson-ance)

    frequency and period time measure-ments

    Specification

    [1] data analysis for TM 155[2] measurement, recording and analys-

    is of frequency response and trans-fer function

    [3] function as digital storage oscillo-scope

    [4] interface box with 3 sensor inputs,3 analogue outputs

    [5] 1 inductive displacement sensor(amplitude), 2 reference sensors (ex-citer force)

    [6] GUNT software for data acquisitionvia USB under Windows

    Technical data

    Sensor input channels: 3Inputs in oscilloscope mode: 2Time basis: 10 750ms/DIVRecord length: 2000 points

    Displacement sensors measuring range: 510mm frequency range: 050Hz

    LxWxH: 265x260x110mm (interfacebox)Weight: approx. 7kgLxWxH: 600x400x170mm (storage sys-tem)

    Scope of delivery

    1 GUNT software CD + USB cable1 interface box1 displacement sensor2 reference sensors (exciter force)1 cable set1 storage system1 manual

    Order number 040.15520

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 01.2017

    guntTM 150.02Free and damped torsional vibrations

    Description

    influence of mass, torsional rigid-ity and damping on the behaviourof a rotary oscillator

    Torsional vibrations play a major role indrive systems. Selecting an inappropri-ate natural frequency can lead to reson-ance phenomena, which in some circum-stances may lead to serious damage.

    The TM 150.02 unit can be used to pro-duce free torsional vibrations and tostudy the effects of torsional stiffness,mass and damping on frequency andamplitude. The accessory kit is designedto be installed in the TM 150 orTM 155 vibration trainers.

    The accessory kit contains three differ-ent torsion bars and two different massdisks with which to create torsional vi-brations.

    The rigidity of the torsion bars can beadjusted by selecting the effective lengthof the bar, such that the natural fre-quency of the torsional vibration can beadjusted within wide limits.

    Bearings and mass disks are clampedto positions on the torsion bars usingclamping chucks. An oil damper is usedto display damped vibrations. The vibra-tions are recorded on theTM 150/TM 155 recorder.

    Learning objectives/experiments

    natural frequency of a rotary oscillator influence of torsional stiffness, mass

    and damping

    Specification

    [1] supplementary experiment for tor-sional vibrations for the TM 150 andTM 155 vibration trainers

    [2] 3 torsion bars with different diamet-ers, freely selectable effective length

    [3] 3 different mass disks with clampingchuck

    [4] 3 with ball bearings and clampingchuck

    [5] oil damper for damped vibrations[6] recorder for recording the vibrations

    in TM 150/TM 155

    Technical data

    Torsion bars, stainless steel diameter: 3mm, 5mm, 6mm length: 800mm

    Mass disks small: D=150mm approx. 2,7kg large: D=228mm approx. 4,8kg

    Clamping chuck: D=0,58,0mm

    LxWxH: approx. 480x240x1180mm (as-sembled)Weight: approx. 33kg

    Scope of delivery

    1 experimental unit1 set of instructional material

    Order number 040.15002

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

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  • Machine dynamicsVibrations in machines guntgunt

    VORLAGEMomentengleichgewicht am zweiarmigen Hebel

    Beschreibung

    Grundlagen des Momentengleich-gewichts und Anwendung des He-belgesetzes

    Mit EM 049 werden am Beispiel eineszweiarmigen Hebels die Grundlagen desMomentengleichgewichts untersucht.Auftretende Momente am Hebel sollenins Gleichgewicht gebracht werden.

    Ein mittig gelagerter Balken stellt einenzweiarmigen Hebel dar. Auf den Hebel

    werden verschiebbare Reiter gesetztund Gewichte aufgebracht. Durch Ver-schieben der Gewichte wird ein Gleich-gewicht eingestellt. Abstnde vom Dreh-punkt, die Hebelarme, knnen auf einerintegrierten Skala abgelesen werden.Die Berechnung der Hebelarme wird imVersuch berprft.

    Eine Standsule trgt den Hebel, einestabile Grundplatte gewhrleistet siche-ren Stand.

    Lerninhalte/bungen

    Grundlagen des Momentengleichge-wichts: angreifende Krfte, erzeugteMomente und Gleichgewicht

    Wirkung von Krften in Abhngigkeitvom Hebelarm

    Spezifikationen

    [1]Untersuchung des Momentengleich-gewichts am zweiarmigen Hebel

    [2] kugelgelagerter Balken mit integrier-tem Mastab als zweiarmiger Hebel

    [3]stabiler, standfester Rahmen ausMetall

    [4]Aufbewahrungssystem fr die Teile

    Technische Daten

    Balken LxBxH: 600x30x10mm, mittig kugel-

    gelagert Hebellnge: 2x 300mmGewichte 3x 1N (Hnger) 6x 5N 12x 1N

    LxBxH: 600x300x410mmGewicht: ca. 10kgAufbewahrungssystem:LxBxH: 200x70x40mmLxBxH: 95x68x35mm

    Lieferumfang

    1 Versuchsgert1 Satz Gewichte1 Satz didaktisches Begleitmaterial

    Artikel-Nummer 049.04900

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    Wir behalten uns das Recht vor, technische nderungen ohne Ankndigung vorzunehmen. Seite 1/1 - 08.2016

    VORLAGE

    4 guntTM 155.20System for data acquisition

    x

    Description

    measurement and illustration offrequency and phase response

    digital storage oscilloscope

    This system for data acquisition is an ad-dition to the experimental unit TM 155and makes it possible to analyse vibra-tion signals on a PC. Frequency andphase response curves can be easilygenerated, saved and output using thissystem. The system also offers all theessential functions of a digital storageoscilloscope and can calculate the fre-quency spectra of the signals.

    In addition to the software, a displace-ment sensor and a reference sensor,the system also includes an interfacebox. The box supplies up to threesensors, prepares their measuring sig-nals for the PC and offers them to threeanalogue outputs for display.

    All components of the system are readyat hand and securely housed in a stor-age system.

    Learning objectives/experiments

    supported experiments with TM 155 natural vibration of a bar-type oscil-

    lator damped vibration of a bar-type oscil-

    lator forced vibration of a bar-type oscillat-

    or (damped and undamped reson-ance)

    frequency and period time measure-ments

    Specification

    [1] data analysis for TM 155[2] measurement, recording and analys-

    is of frequency response and trans-fer function

    [3] function as digital storage oscillo-scope

    [4] interface box with 3 sensor inputs,3 analogue outputs

    [5] 1 inductive displacement sensor(amplitude), 2 reference sensors (ex-citer force)

    [6] GUNT software for data acquisitionvia USB under Windows

    Technical data

    Sensor input channels: 3Inputs in oscilloscope mode: 2Time basis: 10 750ms/DIVRecord length: 2000 points

    Displacement sensors measuring range: 510mm frequency range: 050Hz

    LxWxH: 265x260x110mm (interfacebox)Weight: approx. 7kgLxWxH: 600x400x170mm (storage sys-tem)

    Scope of delivery

    1 GUNT software CD + USB cable1 interface box1 displacement sensor2 reference sensors (exciter force)1 cable set1 storage system1 manual

    Order number 040.15520

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 01.2017

    guntTM 150.02Free and damped torsional vibrations

    Description

    influence of mass, torsional rigid-ity and damping on the behaviourof a rotary oscillator

    Torsional vibrations play a major role indrive systems. Selecting an inappropri-ate natural frequency can lead to reson-ance phenomena, which in some circum-stances may lead to serious damage.

    The TM 150.02 unit can be used to pro-duce free torsional vibrations and tostudy the effects of torsional stiffness,mass and damping on frequency andamplitude. The accessory kit is designedto be installed in the TM 150 orTM 155 vibration trainers.

    The accessory kit contains three differ-ent torsion bars and two different massdisks with which to create torsional vi-brations.

    The rigidity of the torsion bars can beadjusted by selecting the effective lengthof the bar, such that the natural fre-quency of the torsional vibration can beadjusted within wide limits.

    Bearings and mass disks are clampedto positions on the torsion bars usingclamping chucks. An oil damper is usedto display damped vibrations. The vibra-tions are recorded on theTM 150/TM 155 recorder.

    Learning objectives/experiments

    natural frequency of a rotary oscillator influence of torsional stiffness, mass

    and damping

    Specification

    [1] supplementary experiment for tor-sional vibrations for the TM 150 andTM 155 vibration trainers

    [2] 3 torsion bars with different diamet-ers, freely selectable effective length

    [3] 3 different mass disks with clampingchuck

    [4] 3 with ball bearings and clampingchuck

    [5] oil damper for damped vibrations[6] recorder for recording the vibrations

    in TM 150/TM 155

    Technical data

    Torsion bars, stainless steel diameter: 3mm, 5mm, 6mm length: 800mm

    Mass disks small: D=150mm approx. 2,7kg large: D=228mm approx. 4,8kg

    Clamping chuck: D=0,58,0mm

    LxWxH: approx. 480x240x1180mm (as-sembled)Weight: approx. 33kg

    Scope of delivery

    1 experimental unit1 set of instructional material

    Order number 040.15002

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

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  • Machine dynamicsVibrations in machines gunt4 gunt

    TM 140Rotational vibrations

    1 torsion bar, 2 clamping chuck, 3 mass disk, 4 exciter unit, 5 bearing unit, 6 rotary anglesensor, 7 damper unit, 8 display and control unit

    Crankshaft as an example of a torsional oscillator

    Example oscillograph: left torsional vibration of a torsion bar with mass disk, weaklydamped; right the same vibration with strong damping

    Specification

    [1] experimental unit for investigating torsional vibra-tions and torsional stiffness

    [2] 3 mass disks[3] 4 freely positionable ball-bearing-mounted units with

    clamping chucks[4] sealed oil damper[5] exciter unit with drive crank; exciter amplitudes

    1,4, 1,8, 2,4[6] 4 rotary angle sensors, 0,03V/[7] electrical exciter control unit for setting and display-

    ing the exciter frequency and for powering therotary encoder

    [8] GUNT software for data acquisition via USB underWindows

    Technical data

    Torsion bar 1300mm D=6mm stainless steel

    Rigidity: approx. 1,0Nm/rad/m

    Mass disks D=150mm, approx. 2,7kg D=228mm, approx. 4,8kg

    Exciter frequency: 120Hz

    Damper coefficient: 0,253,5Nm/rad/s

    LxWxH: 1400x410x400mmWeight: approx. 50kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit4 bearing units1 torsion bar3 mass disks1 exciter1 rotational damper1 control unit1 set of cables1 hexagon screwdriver SW41 CD with GUNT software + USB cable1 set of instructional material

    Order number 040.14000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 140Rotational vibrations

    x

    Description

    investigation of torsional stiff-ness and torsional vibrations

    behaviour of two-mass and three-mass torsional oscillators

    Torsional vibrations are often observedin belt-driven systems. With appropriateexcitation of resonances, large vibrationamplitudes can occur, which can lead tostrong loads on shafts and gears, poten-tially resulting in damage.

    The TM 140 unit can be used to pro-duce free and forced torsional vibrationsand to study the effects of torsional stiff-ness, mass and damping on frequencyand amplitude.

    The core of the experimental unit is ametal torsion bar. Mass disks with differ-ent rotational inertias can be attachedto the bar using clamping chucks. Thisallows a torsional vibration system to becreated with up to three masses. Thetorsional stiffness can be adjusted byvarying the effective bar length. An ex-citer unit driven by an electric motor isused to represent forced vibrations. Thefrequency can be adjusted and read onthe control unit.

    A damper makes it possible to set differ-ent degrees of damping. The torsional vi-brations are picked up via rotary en-coders on the bearings of the torsionbar and are available on the control unitas an electrical signal. All signals arealso available via a USB port and can betransferred to a PC.

    The GUNT software allows the signals tobe recorded and analysed, for examplerecording a resonance curve or display-ing the natural mode.

    Learning objectives/experiments

    determine the torsional stiffness of atorsion bar

    determine the mass moments of iner-tia

    decay behaviour of torsional vibrations determine the damping in torsional vi-

    brations forced torsional vibrations, resonance torsional vibration systems with mul-

    tiple masses two-mass torsional oscillator three-mass torsional oscillator

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

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  • Machine dynamicsVibrations in machines gunt4 gunt

    TM 140Rotational vibrations

    1 torsion bar, 2 clamping chuck, 3 mass disk, 4 exciter unit, 5 bearing unit, 6 rotary anglesensor, 7 damper unit, 8 display and control unit

    Crankshaft as an example of a torsional oscillator

    Example oscillograph: left torsional vibration of a torsion bar with mass disk, weaklydamped; right the same vibration with strong damping

    Specification

    [1] experimental unit for investigating torsional vibra-tions and torsional stiffness

    [2] 3 mass disks[3] 4 freely positionable ball-bearing-mounted units with

    clamping chucks[4] sealed oil damper[5] exciter unit with drive crank; exciter amplitudes

    1,4, 1,8, 2,4[6] 4 rotary angle sensors, 0,03V/[7] electrical exciter control unit for setting and display-

    ing the exciter frequency and for powering therotary encoder

    [8] GUNT software for data acquisition via USB underWindows

    Technical data

    Torsion bar 1300mm D=6mm stainless steel

    Rigidity: approx. 1,0Nm/rad/m

    Mass disks D=150mm, approx. 2,7kg D=228mm, approx. 4,8kg

    Exciter frequency: 120Hz

    Damper coefficient: 0,253,5Nm/rad/s

    LxWxH: 1400x410x400mmWeight: approx. 50kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit4 bearing units1 torsion bar3 mass disks1 exciter1 rotational damper1 control unit1 set of cables1 hexagon screwdriver SW41 CD with GUNT software + USB cable1 set of instructional material

    Order number 040.14000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 140Rotational vibrations

    x

    Description

    investigation of torsional stiff-ness and torsional vibrations

    behaviour of two-mass and three-mass torsional oscillators

    Torsional vibrations are often observedin belt-driven systems. With appropriateexcitation of resonances, large vibrationamplitudes can occur, which can lead tostrong loads on shafts and gears, poten-tially resulting in damage.

    The TM 140 unit can be used to pro-duce free and forced torsional vibrationsand to study the effects of torsional stiff-ness, mass and damping on frequencyand amplitude.

    The core of the experimental unit is ametal torsion bar. Mass disks with differ-ent rotational inertias can be attachedto the bar using clamping chucks. Thisallows a torsional vibration system to becreated with up to three masses. Thetorsional stiffness can be adjusted byvarying the effective bar length. An ex-citer unit driven by an electric motor isused to represent forced vibrations. Thefrequency can be adjusted and read onthe control unit.

    A damper makes it possible to set differ-ent degrees of damping. The torsional vi-brations are picked up via rotary en-coders on the bearings of the torsionbar and are available on the control unitas an electrical signal. All signals arealso available via a USB port and can betransferred to a PC.

    The GUNT software allows the signals tobe recorded and analysed, for examplerecording a resonance curve or display-ing the natural mode.

    Learning objectives/experiments

    determine the torsional stiffness of atorsion bar

    determine the mass moments of iner-tia

    decay behaviour of torsional vibrations determine the damping in torsional vi-

    brations forced torsional vibrations, resonance torsional vibration systems with mul-

    tiple masses two-mass torsional oscillator three-mass torsional oscillator

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017193192

  • Machine dynamicsVibrations in machines gunt4 gunt

    HM 159.11Natural vibration on a ship model

    1 frame, 2 adjustable height cross-member, 3 springs for suspending the model ship, 4 ac-celeration sensor, 5 measuring amplifier, 6 multimeter, 7 oscilloscope (not included),8 function generator, 9 power amplifier for vibration exciter, 10 vibration exciter

    Elongation y of the vibration, shown over the length L of the model shipblue: first order natural frequency, red: second order natural frequency

    1 blue: first order natural frequency, 2 red: second order natural frequency

    Specification

    [1] vibration behaviour of a model ship in air and in wa-ter (with additional tank)

    [2] model ship mounted on springs; vibration excitationand acceleration measurement at any point

    [3] frame with height-adjustable cross-member for at-taching the model

    [4] high natural frequency of the cross-member owingto enclosed box cross-section with high rigidity andlow weight

    [5] plastic model ship with elliptical lines plan and9 ribs

    [6] capacitive acceleration sensor with measuringamplifier, freely positionable

    [7] vibration exciter with power amplifier and functiongenerator: sinusoidal, triangular or rectangular sig-nal

    [8] possible to display measured values on an oscillo-scope (not included)

    Technical data

    Vibration exciter electrodynamic type with permanent magnet max. force: 8,9N frequency range: 512000HzFunction generator adjustable frequency, amplitude and offset output: 010Vss, 50 OhmAcceleration sensor measuring range: 5g frequency range: 0400Hz

    Model ship deck stringer with fastening holes for sensors and

    suspension

    LxWxH: 1800x400x1700mm (frame)LxWxH: 1200x200x150mm (model ship)Weight: approx. 50kg

    Required for operation

    230V, 50Hz, 1 phase

    Scope of delivery

    1 experimental unit1 model ship4 springs1 measuring amplifier1 power amplifier1 vibration exciter1 function generator2 multimeters1 acceleration sensors1 set of cables1 set of instructional material

    Order number 070.15911

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 12.2016

    guntHM 159.11Natural vibration on a ship model

    Description

    dynamic behaviour of a shipstructure

    simple ship form simplifies themathematical approach

    different excitation signals pos-sible

    optional excitation and measuringpoints

    Nowadays, experiment-based vibrationanalysis is an essential component inshipbuilding design and development.

    The HM 159.11 unit helps studentstake their first steps in the field of exper-imental vibration analysis or modal ana-lysis of structures. Using this trainer, thedynamic behaviour of a ship structure isstudied, teaching students the funda-mentals of experimental vibration analys-is.

    The HM 159.11 unit can be used tomeasure and record the natural fre-quencies and modes of a model ship.The simple, idealised ship shape makesit easier to approach the problem math-ematically. The plastic model ship hasnine ribs and an elliptical line plan.

    The model ship is attached to a rigidcross-member by springs. The enclosedbox cross-section with high rigiditymeans the natural frequency of thecross-member is negligibly high.

    An electrodynamic vibration excitercauses the model ship to vibrate. A func-tion generator produces the excitationsignal, which can be adjusted in amp-litude and frequency. An arbitrarily posi-tionable acceleration sensor measuresthe models response to the excitationsignal. In this manner, the transfer func-tions for various points of the model shipcan be generated step by step. Thesecan be used to determine the vibrationmodes for various natural frequencies.Experiments can also be conducted inwater.

    An additional tank is required to conductthese experiments (not included). Com-plementary experiments can be conduc-ted with additional ballast and weights.

    Learning objectives/experiments

    measure and record natural frequen-cies and modes of the model ship(in air)

    vibration behaviour of the model shipin air

    comparison between theory (approxim-ation formula for determining the firstbending frequency) and practice(measured natural frequency)

    influence of discrete additional massesor ballast on natural frequency andmode (ballast and extra weights not in-cluded)

    vibration behaviour of floating modelship (possible with additional tank)

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 12.2016195194

  • Machine dynamicsVibrations in machines gunt4 gunt

    HM 159.11Natural vibration on a ship model

    1 frame, 2 adjustable height cross-member, 3 springs for suspending the model ship, 4 ac-celeration sensor, 5 measuring amplifier, 6 multimeter, 7 oscilloscope (not included),8 function generator, 9 power amplifier for vibration exciter, 10 vibration exciter

    Elongation y of the vibration, shown over the length L of the model shipblue: first order natural frequency, red: second order natural frequency

    1 blue: first order natural frequency, 2 red: second order natural frequency

    Specification

    [1] vibration behaviour of a model ship in air and in wa-ter (with additional tank)

    [2] model ship mounted on springs; vibration excitationand acceleration measurement at any point

    [3] frame with height-adjustable cross-member for at-taching the model

    [4] high natural frequency of the cross-member owingto enclosed box cross-section with high rigidity andlow weight

    [5] plastic model ship with elliptical lines plan and9 ribs

    [6] capacitive acceleration sensor with measuringamplifier, freely positionable

    [7] vibration exciter with power amplifier and functiongenerator: sinusoidal, triangular or rectangular sig-nal

    [8] possible to display measured values on an oscillo-scope (not included)

    Technical data

    Vibration exciter electrodynamic type with permanent magnet max. force: 8,9N frequency range: 512000HzFunction generator adjustable frequency, amplitude and offset output: 010Vss, 50 OhmAcceleration sensor measuring range: 5g frequency range: 0400Hz

    Model ship deck stringer with fastening holes for sensors and

    suspension

    LxWxH: 1800x400x1700mm (frame)LxWxH: 1200x200x150mm (model ship)Weight: approx. 50kg

    Required for operation

    230V, 50Hz, 1 phase

    Scope of delivery

    1 experimental unit1 model ship4 springs1 measuring amplifier1 power amplifier1 vibration exciter1 function generator2 multimeters1 acceleration sensors1 set of cables1 set of instructional material

    Order number 070.15911

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 12.2016

    guntHM 159.11Natural vibration on a ship model

    Description

    dynamic behaviour of a shipstructure

    simple ship form simplifies themathematical approach

    different excitation signals pos-sible

    optional excitation and measuringpoints

    Nowadays, experiment-based vibrationanalysis is an essential component inshipbuilding design and development.

    The HM 159.11 unit helps studentstake their first steps in the field of exper-imental vibration analysis or modal ana-lysis of structures. Using this trainer, thedynamic behaviour of a ship structure isstudied, teaching students the funda-mentals of experimental vibration analys-is.

    The HM 159.11 unit can be used tomeasure and record the natural fre-quencies and modes of a model ship.The simple, idealised ship shape makesit easier to approach the problem math-ematically. The plastic model ship hasnine ribs and an elliptical line plan.

    The model ship is attached to a rigidcross-member by springs. The enclosedbox cross-section with high rigiditymeans the natural frequency of thecross-member is negligibly high.

    An electrodynamic vibration excitercauses the model ship to vibrate. A func-tion generator produces the excitationsignal, which can be adjusted in amp-litude and frequency. An arbitrarily posi-tionable acceleration sensor measuresthe models response to the excitationsignal. In this manner, the transfer func-tions for various points of the model shipcan be generated step by step. Thesecan be used to determine the vibrationmodes for various natural frequencies.Experiments can also be conducted inwater.

    An additional tank is required to conductthese experiments (not included). Com-plementary experiments can be conduc-ted with additional ballast and weights.

    Learning objectives/experiments

    measure and record natural frequen-cies and modes of the model ship(in air)

    vibration behaviour of the model shipin air

    comparison between theory (approxim-ation formula for determining the firstbending frequency) and practice(measured natural frequency)

    influence of discrete additional massesor ballast on natural frequency andmode (ballast and extra weights not in-cluded)

    vibration behaviour of floating modelship (possible with additional tank)

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 12.2016195194

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 620Bending elasticity in rotors

    1 switch box, 2 motor, 3 inductive speed sensor, 4 flexible coupling, 5 mass disk, 6 rotor,7 protective cover, 8 safety bearing, 9 self-aligning ball bearing

    Reducing the bearing clearance increases the critical speed; A amplitude, n speed;na critical speed at bearing clearance a, nb critical speed at bearing clearance b, shadedarea: supercritical speed

    Various arrangements for studying the critical speed:A one mass disk central position, B two mass disks at first critical speed, C two mass disksat second critical speed, D overhung mass disk

    Specification

    [1] investigation of bending vibrations and resonance inrotors

    [2] 2 self-aligning ball bearings to support the rotorshaft, positionable at any point

    [3] 2 masses to be secured at any point[4] safety bearing and transparent protective cover for

    safe operation[5] three-phase motor: 2 pre-selectable speed ranges;

    speed electronically controlled and continuously ad-justable

    [6] digital speed display[7] system for data acquisition (TM 620.20) available

    as an option

    Technical data

    Three-phase motor power: 0,25kW max. speed: 3000min-1

    Rotor L=500mm D=6mm high tensile steel

    Mass 2x, disk-shaped m=965g D=80mm hardened steel

    Rotor bearing 2x self-aligning ball bearings 2x safety bearings safety bearing play: 3mm adjustable bearing clearance: 300470mm

    Measuring ranges speed: 3003000min-1 scale for clearance measurement: 0500mm

    LxWxH: 1150x380x410mmWeight: approx. 49kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 set of instructional material

    Order number 040.62000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 620Bending elasticity in rotors

    Description

    investigation of bending vibra-tions in rotors

    determine critical speeds positions of rotor bearing and ro-

    tating mass can be adjusted

    Critical speed and resonance are phe-nomena that play essential roles in manymachines and systems. In particular,resonance states with impermissiblyhigh vibration amplitudes can occur inrotating shafts and rotors at certainspeeds, which in some cases can evenlead to destruction of the machine. Toprevent this, the system is operated wellabove or below the critical speed anddriven quickly through the critical speedrange. Therefore, knowledge of criticalspeeds and vibration modes is import-ant in the design and operation of ma-chines with bending elasticity in their ro-tors.

    The TM 620 experimental unit can beused to clearly demonstrate phenomenasuch as resonance, self-centring and vi-bration modes. The model-like structureof the experimental rotor as a thin, elast-ic shaft with rigid mass disks allowssimple theoretical comprehension of thevibration phenomena that occur.

    The influence of different parameterscan be studied thanks to the free choiceof bearing and disk arrangement. Thelimitation of the amplitudes at a rapidresonant cycle can also be demon-strated.

    A three-phase motor drives a shaft, ontowhich one or two masses may be fixedat various distances. This rotor is moun-ted in two self-aligning ball bearings andconnected to the motor via a flexiblecoupling. The electronically controlledspeed can be selected via two poten-tiometers and is continuously variable. Itis displayed on a digital display.

    The positions of and distances to ele-ments fixed onto the rotor can be readon a scale mounted in parallel with therotor.

    A transparent protective cover andsafety bearing immediately next to themasses ensure safe operation.

    The measured values can be displayedand analysed on a PC using the optionalTM 620.20 unit for data acquisition.

    Learning objectives/experiments

    investigate bending vibrations and res-onance of a rotating shaft

    determine critical speeds with differentarrangements of the bearing andmasses on the rotor and compare withtheory

    investigation of the rotors self-centringeffect

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017197196

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 620Bending elasticity in rotors

    1 switch box, 2 motor, 3 inductive speed sensor, 4 flexible coupling, 5 mass disk, 6 rotor,7 protective cover, 8 safety bearing, 9 self-aligning ball bearing

    Reducing the bearing clearance increases the critical speed; A amplitude, n speed;na critical speed at bearing clearance a, nb critical speed at bearing clearance b, shadedarea: supercritical speed

    Various arrangements for studying the critical speed:A one mass disk central position, B two mass disks at first critical speed, C two mass disksat second critical speed, D overhung mass disk

    Specification

    [1] investigation of bending vibrations and resonance inrotors

    [2] 2 self-aligning ball bearings to support the rotorshaft, positionable at any point

    [3] 2 masses to be secured at any point[4] safety bearing and transparent protective cover for

    safe operation[5] three-phase motor: 2 pre-selectable speed ranges;

    speed electronically controlled and continuously ad-justable

    [6] digital speed display[7] system for data acquisition (TM 620.20) available

    as an option

    Technical data

    Three-phase motor power: 0,25kW max. speed: 3000min-1

    Rotor L=500mm D=6mm high tensile steel

    Mass 2x, disk-shaped m=965g D=80mm hardened steel

    Rotor bearing 2x self-aligning ball bearings 2x safety bearings safety bearing play: 3mm adjustable bearing clearance: 300470mm

    Measuring ranges speed: 3003000min-1 scale for clearance measurement: 0500mm

    LxWxH: 1150x380x410mmWeight: approx. 49kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 set of instructional material

    Order number 040.62000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 620Bending elasticity in rotors

    Description

    investigation of bending vibra-tions in rotors

    determine critical speeds positions of rotor bearing and ro-

    tating mass can be adjusted

    Critical speed and resonance are phe-nomena that play essential roles in manymachines and systems. In particular,resonance states with impermissiblyhigh vibration amplitudes can occur inrotating shafts and rotors at certainspeeds, which in some cases can evenlead to destruction of the machine. Toprevent this, the system is operated wellabove or below the critical speed anddriven quickly through the critical speedrange. Therefore, knowledge of criticalspeeds and vibration modes is import-ant in the design and operation of ma-chines with bending elasticity in their ro-tors.

    The TM 620 experimental unit can beused to clearly demonstrate phenomenasuch as resonance, self-centring and vi-bration modes. The model-like structureof the experimental rotor as a thin, elast-ic shaft with rigid mass disks allowssimple theoretical comprehension of thevibration phenomena that occur.

    The influence of different parameterscan be studied thanks to the free choiceof bearing and disk arrangement. Thelimitation of the amplitudes at a rapidresonant cycle can also be demon-strated.

    A three-phase motor drives a shaft, ontowhich one or two masses may be fixedat various distances. This rotor is moun-ted in two self-aligning ball bearings andconnected to the motor via a flexiblecoupling. The electronically controlledspeed can be selected via two poten-tiometers and is continuously variable. Itis displayed on a digital display.

    The positions of and distances to ele-ments fixed onto the rotor can be readon a scale mounted in parallel with therotor.

    A transparent protective cover andsafety bearing immediately next to themasses ensure safe operation.

    The measured values can be displayedand analysed on a PC using the optionalTM 620.20 unit for data acquisition.

    Learning objectives/experiments

    investigate bending vibrations and res-onance of a rotating shaft

    determine critical speeds with differentarrangements of the bearing andmasses on the rotor and compare withtheory

    investigation of the rotors self-centringeffect

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017197196

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 625Elastic shafts

    1 switch box, 2 motor, 3 inductive speed sensor, 4 elastic coupling, 5 self-aligning ball bear-ings, 6 safety bearing, 7 protective cover, 8 shaft, 9 mass disk

    Vibration behaviour of a Laval rotor: n speed, A amplitude, nc critical speed with resonance,shaded area: subcritical speed, red shaded area: supercritical speed with self-centring

    Natural modes of a shaft with continuous mass distribution: a) first natural mode, b) secondnatural mode, c) third natural mode; red: amplitude of the vibration, blue: position of thesafety bearing; L clearance of the shaft bearing

    Specification

    [1] experimental unit for determining critical speedsand investigating the natural modes of a shaft

    [2] 6 high-tensile steel shafts[3] up to 4 self-aligning ball bearings, each moveable to

    any point as a shaft bearing[4] 1 mass for constructing a Laval rotor[5] 3 safety bearings and transparent protective cover

    for safe operation[6] three-phase motor: 2 pre-selectable speed ranges;

    speed electronically controlled and continuously ad-justable

    [7] digital speed display[8] system TM 620.20 for data acquisition available as

    an option

    Technical data

    6 shafts D: 3mm, 6mm, 7mm L: 600mm, 900mm high-tensile steel

    Mass, disk-shaped D: 80mm m: 965g high-tensile steel

    Motor power: 0,25kW max. speed: 6000min-1 speed electronically controlled

    Shaft bearing 4x self-aligning ball bearings 3x safety bearings

    Measuring ranges speed: 06000min-1 scale for clearance measurement: 01000mm

    LxWxH: 1550x380x450mmWeight: approx. 65kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit6 shafts1 set of tools1 set of instructional material

    Order number 040.62500

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 625Elastic shafts

    Description

    investigation of the naturalmodes of various shafts with con-tinuous mass distribution and ofa Laval rotor

    optimal visibility and simultan-eous protection thanks to trans-parent protective cover

    The terms critical speed and reson-ance are often used when referring torotating systems. Resonance occurswhen the natural frequency and the ex-citation frequency match. The naturalfrequency of an oscillatory system isthat frequency at which the system os-cillates with the associated naturalmode after a single excitation. Operationat critical speed can damage the systembecause of the high vibration amp-litudes. In order to study the phenomen-on of shaft vibration in more detail, thereare two simplified calculation models. Inthe first case, the mass of the elasticshaft is evenly distributed along itslength. In the second case, the shaftconsists of massless, elastic shaft sec-tions and the masses are combined intodiscrete mass disks.

    The TM 625 experimental unit can beused to study the natural modes ofthese different models. Illustrative exper-iments are used to explain resonanceand the supercritical or subcriticalstates of a vibrating system. Six shaftsof different lengths and diameters areavailable. The shafts can be mounted onfour self-aligning ball bearings and fittedwith a mass disk to construct a Laval ro-tor. The axial positions are read on ascale mounted parallel to the shaft. Athree-phase motor drives the shaft via aflexible coupling. The electronically con-trolled speed can be selected via two po-tentiometers and is continuously vari-able. It is displayed digitally.

    A transparent protective cover andsafety bearing ensure safe operation.

    The measured values can be displayedand analysed on a PC using the optionalTM 620.20 unit for data acquisition.

    Learning objectives/experiments

    investigation of a Laval rotor critical speed self-alignment

    natural modes on a shaft with continu-ous mass distribution with different bearing clearances different shaft diameters different shaft lengths

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017199198

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 625Elastic shafts

    1 switch box, 2 motor, 3 inductive speed sensor, 4 elastic coupling, 5 self-aligning ball bear-ings, 6 safety bearing, 7 protective cover, 8 shaft, 9 mass disk

    Vibration behaviour of a Laval rotor: n speed, A amplitude, nc critical speed with resonance,shaded area: subcritical speed, red shaded area: supercritical speed with self-centring

    Natural modes of a shaft with continuous mass distribution: a) first natural mode, b) secondnatural mode, c) third natural mode; red: amplitude of the vibration, blue: position of thesafety bearing; L clearance of the shaft bearing

    Specification

    [1] experimental unit for determining critical speedsand investigating the natural modes of a shaft

    [2] 6 high-tensile steel shafts[3] up to 4 self-aligning ball bearings, each moveable to

    any point as a shaft bearing[4] 1 mass for constructing a Laval rotor[5] 3 safety bearings and transparent protective cover

    for safe operation[6] three-phase motor: 2 pre-selectable speed ranges;

    speed electronically controlled and continuously ad-justable

    [7] digital speed display[8] system TM 620.20 for data acquisition available as

    an option

    Technical data

    6 shafts D: 3mm, 6mm, 7mm L: 600mm, 900mm high-tensile steel

    Mass, disk-shaped D: 80mm m: 965g high-tensile steel

    Motor power: 0,25kW max. speed: 6000min-1 speed electronically controlled

    Shaft bearing 4x self-aligning ball bearings 3x safety bearings

    Measuring ranges speed: 06000min-1 scale for clearance measurement: 01000mm

    LxWxH: 1550x380x450mmWeight: approx. 65kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit6 shafts1 set of tools1 set of instructional material

    Order number 040.62500

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 625Elastic shafts

    Description

    investigation of the naturalmodes of various shafts with con-tinuous mass distribution and ofa Laval rotor

    optimal visibility and simultan-eous protection thanks to trans-parent protective cover

    The terms critical speed and reson-ance are often used when referring torotating systems. Resonance occurswhen the natural frequency and the ex-citation frequency match. The naturalfrequency of an oscillatory system isthat frequency at which the system os-cillates with the associated naturalmode after a single excitation. Operationat critical speed can damage the systembecause of the high vibration amp-litudes. In order to study the phenomen-on of shaft vibration in more detail, thereare two simplified calculation models. Inthe first case, the mass of the elasticshaft is evenly distributed along itslength. In the second case, the shaftconsists of massless, elastic shaft sec-tions and the masses are combined intodiscrete mass disks.

    The TM 625 experimental unit can beused to study the natural modes ofthese different models. Illustrative exper-iments are used to explain resonanceand the supercritical or subcriticalstates of a vibrating system. Six shaftsof different lengths and diameters areavailable. The shafts can be mounted onfour self-aligning ball bearings and fittedwith a mass disk to construct a Laval ro-tor. The axial positions are read on ascale mounted parallel to the shaft. Athree-phase motor drives the shaft via aflexible coupling. The electronically con-trolled speed can be selected via two po-tentiometers and is continuously vari-able. It is displayed digitally.

    A transparent protective cover andsafety bearing ensure safe operation.

    The measured values can be displayedand analysed on a PC using the optionalTM 620.20 unit for data acquisition.

    Learning objectives/experiments

    investigation of a Laval rotor critical speed self-alignment

    natural modes on a shaft with continu-ous mass distribution with different bearing clearances different shaft diameters different shaft lengths

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017199198

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 620.20System for data acquisition

    1 measuring amplifier and A-D converter, 2 USB output to PC, 3 speed sensor, 4 inductivedisplacement sensor, 5 TM 620 experimental unit

    Sensors: inductive displacement sensor

    Software screenshot: representation of the amplitude as a function of the speed

    Specification

    [1] data acquisition and analysis of shaft vibrations forTM 620 and TM 625

    [2] 2 inductive, non-contact displacement sensors[3] measuring amplifier and A-D converter for signal

    processing[4] GUNT software for data acquisition via USB under

    Windows

    Technical data

    2 displacement sensors measuring principle: inductive, non-contact output signal: analogue 19V measuring distance: 510mm measuring velocity:

  • Machine dynamicsRotor dynamics gunt4 gunt

    TM 620.20System for data acquisition

    1 measuring amplifier and A-D converter, 2 USB output to PC, 3 speed sensor, 4 inductivedisplacement sensor, 5 TM 620 experimental unit

    Sensors: inductive displacement sensor

    Software screenshot: representation of the amplitude as a function of the speed

    Specification

    [1] data acquisition and analysis of shaft vibrations forTM 620 and TM 625

    [2] 2 inductive, non-contact displacement sensors[3] measuring amplifier and A-D converter for signal

    processing[4] GUNT software for data acquisition via USB under

    Windows

    Technical data

    2 displacement sensors measuring principle: inductive, non-contact output signal: analogue 19V measuring distance: 510mm measuring velocity:

  • Machine dynamicsBalancing gunt4 gunt

    TM 170Balancing apparatus

    1 variable weight, 2 pulley, 3 shaft, 4 imbalance masses, 5 angular scale, 6 drive belt,7 foundation with elastic bearing

    1 static imbalance, 2 dynamic imbalance; S centre of gravity; blue: mass distribution,red: principal axis of inertia

    Determining imbalance:1 pulley, 2 variable weight, r radius, e eccentricity, angle of deflection, mu mass of the im-balance, g gravitational acceleration, mk mass of the variable weight

    Specification

    [1] demonstration of static and dynamic imbalance[2] determine imbalance[3] processes involved in balancing[4] transparent protective cover for safe operation[5] foundation with elastic bearing[6] integrated angular and longitudinal scale[7] digital speed display

    Technical data

    Number of imbalance masses: 4Max. total imbalance: 880cmg

    Measuring range speed: 01400min-1

    LxWxH: 420x400x380mmWeight: approx. 26kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit1 set of tool and weights1 set of instructional material

    Order number 040.17000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 170Balancing apparatus

    Description

    representation of the fundament-al processes involved in balancing

    static and dynamic imbalance

    Imbalances on rotating machines are of-ten the cause of disruptive vibrationsand noise. During imbalance, the princip-al axis of inertia or centre of gravity ofthe rotating machine component is out-side its axis of rotation. By adding or re-moving masses, the centre of gravity orthe principal axis of inertia can be shif-ted so that both coincide with the axis ofrotation. This process is called balan-cing. The machine component is thenbalanced and runs without vibration.

    The TM 170 experimental unit can beused to demonstrate imbalance and thebalancing process clearly. The differencebetween a static and a dynamic imbal-ance can be shown. Imbalance is de-termined and balanced by appropriatemeasures.

    The main element of the experimentalunit is a smooth shaft to which four vari-able imbalance masses are attached atany angular and longitudinal position.The shaft is mounted on ball bearings. Itis driven by a variable-speed electric mo-tor and a belt. The speed of the shaft isdisplayed digitally.

    In order to determine the imbalance, adefined external moment is applied viaan additional pulley with weights. Thismoment is compared to the moment ofthe imbalance masses. A transparentcover protects against contact with ro-tating parts and allows a clear view ofthe shaft. Unwanted vibrations are sup-pressed by using an elastic bearing forthe foundation.

    Learning objectives/experiments

    demonstration of imbalance vibrationsat different speeds

    comparison of static, dynamic or gen-eral imbalance

    determine an imbalance perform a balancing operation

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017203202

  • Machine dynamicsBalancing gunt4 gunt

    TM 170Balancing apparatus

    1 variable weight, 2 pulley, 3 shaft, 4 imbalance masses, 5 angular scale, 6 drive belt,7 foundation with elastic bearing

    1 static imbalance, 2 dynamic imbalance; S centre of gravity; blue: mass distribution,red: principal axis of inertia

    Determining imbalance:1 pulley, 2 variable weight, r radius, e eccentricity, angle of deflection, mu mass of the im-balance, g gravitational acceleration, mk mass of the variable weight

    Specification

    [1] demonstration of static and dynamic imbalance[2] determine imbalance[3] processes involved in balancing[4] transparent protective cover for safe operation[5] foundation with elastic bearing[6] integrated angular and longitudinal scale[7] digital speed display

    Technical data

    Number of imbalance masses: 4Max. total imbalance: 880cmg

    Measuring range speed: 01400min-1

    LxWxH: 420x400x380mmWeight: approx. 26kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit1 set of tool and weights1 set of instructional material

    Order number 040.17000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntTM 170Balancing apparatus

    Description

    representation of the fundament-al processes involved in balancing

    static and dynamic imbalance

    Imbalances on rotating machines are of-ten the cause of disruptive vibrationsand noise. During imbalance, the princip-al axis of inertia or centre of gravity ofthe rotating machine component is out-side its axis of rotation. By adding or re-moving masses, the centre of gravity orthe principal axis of inertia can be shif-ted so that both coincide with the axis ofrotation. This process is called balan-cing. The machine component is thenbalanced and runs without vibration.

    The TM 170 experimental unit can beused to demonstrate imbalance and thebalancing process clearly. The differencebetween a static and a dynamic imbal-ance can be shown. Imbalance is de-termined and balanced by appropriatemeasures.

    The main element of the experimentalunit is a smooth shaft to which four vari-able imbalance masses are attached atany angular and longitudinal position.The shaft is mounted on ball bearings. Itis driven by a variable-speed electric mo-tor and a belt. The speed of the shaft isdisplayed digitally.

    In order to determine the imbalance, adefined external moment is applied viaan additional pulley with weights. Thismoment is compared to the moment ofthe imbalance masses. A transparentcover protects against contact with ro-tating parts and allows a clear view ofthe shaft. Unwanted vibrations are sup-pressed by using an elastic bearing forthe foundation.

    Learning objectives/experiments

    demonstration of imbalance vibrationsat different speeds

    comparison of static, dynamic or gen-eral imbalance

    determine an imbalance perform a balancing operation

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017203202

  • Machine dynamicsBalancing gunt4 gunt

    PT 502Field balancing

    1 motor, 2 acceleration sensor, 3 elastic bearing, 4 control unit, 5 base plate, 6 balancingweight, 7 flywheel

    Left: imbalance force F due to eccentricity e of the centre of gravity S; 1 static imbalancewith eccentric centre of gravity, 2 dynamic imbalance with inclined inertial axis; m mass,U imbalance, W axis of rotation, angular velocity

    Two-plane balancing using the GUNT software for vibration analysis

    Specification

    [1] field balancing in one or two planes[2] 2 flywheels with mounting holes for imbalance

    masses and angular division[3] imbalance or balancing masses in different sizes[4] drive motor with variable speed via a frequency con-

    verter[5] elastic bearing of the drive motor[6] vibration isolation of the base plate using rubber

    feet[7] control unit with integrated measuring amplifier[8] instrumentation: optical speed sensor, 2 accelera-

    tion sensors for vibration measurement[9] software functions: dual-channel oscilloscope, dual-

    channel FFT analyser, ramp-up curve, order analysisand balancing

    [10] GUNT software for vibration analysis under Win-dows

    Technical data

    Flywheels 2x mass: 1,675kg radius for balancing weights: 60mm angular division: 15

    Drive motor speed: 1003000min-1 power: 370W

    Balance masses 0,255cmg max. total imbalance: 2x 42cmg

    Acceleration sensors frequency range: 110000Hz sensitivity: 100mV/g resonant frequency: 32kHz

    Optical speed sensor scan range: 3150mm laser class II: 675nm

    LxWxH: 510x400x330mm (experimental unit)LxWxH: 420x400x180mm (control unit)Weight: approx. 25kg (total)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 control unit1 set of accessories1 GUNT software CD + USB cable1 set of instructional material

    Order number 052.50200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 502Field balancing

    x

    The illustration shows PT 502 without transparent protective cover.

    Description

    measurement of imbalance vibra-tions

    single and two-plane balancing

    In rotating machines such as turbines orpumps, vibrations due to imbalance leadto comfort problems or even damagerelated to overloading. The imbalance ofa rotating machine part may causeharmful vibrations in the entire machine.A familiar example is unbalanced tyreson a car. These cause annoying and un-pleasant vibrations in the steering. Thisis why almost all rotating parts are bal-anced. If this balancing is done not on aparticular machine but directly on themachine in operation located on-site, it isknown as field balancing. Field balancingis done in four steps. In the first step,the vibrations are used to measure theinitial imbalance. In the second step, ad-ditional known test imbalances are ap-plied and the system is measured again.In the third step, the balancing is calcu-lated from these two measurementsand is applied. The fourth step is a con-trol run to check whether the balancinghas been successful.

    The core of the PT 502 unit comprisestwo flywheels that are driven by an elec-tric motor. Defined imbalances can beattached to the flywheels. At the foot ofthe motor are two acceleration sensorsthat measure the imbalance vibrations.The speed is measured by an opticalsensor. The motor is mounted on thebase plate with vibration-damping rub-ber elements. The unit is driven at vari-able speed by a frequency converter.

    The measured values are transmitteddirectly to a PC via USB, where they canbe analysed using the vibration analysissoftware that comes included. This ana-lysis software has the following features:dual-channel oscilloscope for investiga-tions in the time range, dual-channelspectrum analyser for investigations inthe frequency range, vibration amplifierand balancing module for single and two-plane balancing.

    Learning objectives/experiments

    measure and assess machine vibra-tions

    occurrence of imbalance vibrations static, dynamic or general imbalance dependence of imbalance vibration on

    position and magnitude of the imbal-ance

    basic principles of balancing field balancing in one plane field balancing in two planes assessment of balancing quality using a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017205204

  • Machine dynamicsBalancing gunt4 gunt

    PT 502Field balancing

    1 motor, 2 acceleration sensor, 3 elastic bearing, 4 control unit, 5 base plate, 6 balancingweight, 7 flywheel

    Left: imbalance force F due to eccentricity e of the centre of gravity S; 1 static imbalancewith eccentric centre of gravity, 2 dynamic imbalance with inclined inertial axis; m mass,U imbalance, W axis of rotation, angular velocity

    Two-plane balancing using the GUNT software for vibration analysis

    Specification

    [1] field balancing in one or two planes[2] 2 flywheels with mounting holes for imbalance

    masses and angular division[3] imbalance or balancing masses in different sizes[4] drive motor with variable speed via a frequency con-

    verter[5] elastic bearing of the drive motor[6] vibration isolation of the base plate using rubber

    feet[7] control unit with integrated measuring amplifier[8] instrumentation: optical speed sensor, 2 accelera-

    tion sensors for vibration measurement[9] software functions: dual-channel oscilloscope, dual-

    channel FFT analyser, ramp-up curve, order analysisand balancing

    [10] GUNT software for vibration analysis under Win-dows

    Technical data

    Flywheels 2x mass: 1,675kg radius for balancing weights: 60mm angular division: 15

    Drive motor speed: 1003000min-1 power: 370W

    Balance masses 0,255cmg max. total imbalance: 2x 42cmg

    Acceleration sensors frequency range: 110000Hz sensitivity: 100mV/g resonant frequency: 32kHz

    Optical speed sensor scan range: 3150mm laser class II: 675nm

    LxWxH: 510x400x330mm (experimental unit)LxWxH: 420x400x180mm (control unit)Weight: approx. 25kg (total)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 control unit1 set of accessories1 GUNT software CD + USB cable1 set of instructional material

    Order number 052.50200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 502Field balancing

    x

    The illustration shows PT 502 without transparent protective cover.

    Description

    measurement of imbalance vibra-tions

    single and two-plane balancing

    In rotating machines such as turbines orpumps, vibrations due to imbalance leadto comfort problems or even damagerelated to overloading. The imbalance ofa rotating machine part may causeharmful vibrations in the entire machine.A familiar example is unbalanced tyreson a car. These cause annoying and un-pleasant vibrations in the steering. Thisis why almost all rotating parts are bal-anced. If this balancing is done not on aparticular machine but directly on themachine in operation located on-site, it isknown as field balancing. Field balancingis done in four steps. In the first step,the vibrations are used to measure theinitial imbalance. In the second step, ad-ditional known test imbalances are ap-plied and the system is measured again.In the third step, the balancing is calcu-lated from these two measurementsand is applied. The fourth step is a con-trol run to check whether the balancinghas been successful.

    The core of the PT 502 unit comprisestwo flywheels that are driven by an elec-tric motor. Defined imbalances can beattached to the flywheels. At the foot ofthe motor are two acceleration sensorsthat measure the imbalance vibrations.The speed is measured by an opticalsensor. The motor is mounted on thebase plate with vibration-damping rub-ber elements. The unit is driven at vari-able speed by a frequency converter.

    The measured values are transmitteddirectly to a PC via USB, where they canbe analysed using the vibration analysissoftware that comes included. This ana-lysis software has the following features:dual-channel oscilloscope for investiga-tions in the time range, dual-channelspectrum analyser for investigations inthe frequency range, vibration amplifierand balancing module for single and two-plane balancing.

    Learning objectives/experiments

    measure and assess machine vibra-tions

    occurrence of imbalance vibrations static, dynamic or general imbalance dependence of imbalance vibration on

    position and magnitude of the imbal-ance

    basic principles of balancing field balancing in one plane field balancing in two planes assessment of balancing quality using a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017205204

  • Machine dynamicsMass forces and mass balance gunt4 gunt

    TM 180Forces in reciprocating engines

    1 piston, 2 cylinder, 3 crankshaft, 4 foundation plate, 5 display and control unit, 6 forcesensor, 7 drive motor

    Left: definition of the rotating (m ROT) and oscillating (m OSC) masses at the crankdrive, right: possible configurations of the crankshaft: red: single cylinder, blue: two-cylinder,green: four-cylinder

    Left: effect of the oscillating (blue, FOSC) and the rotating (green, FROT) mass forces and theirvectorial addition to the free mass force (red, FU).Right: mass forces course during a crankshaft revolution

    Specification

    [1] experimental unit to investigate oscillating and ro-tating mass forces and moments of a reciprocatingengine with up to 4 cylinders

    [2] simulation of single, 2- or 4-cylinder engines[3] electronically commutated and speed-controlled

    drive motor with digital speed display[4] continuous adjustment of the angle between cranks[5] force sensors to measure forces and moments[6] vibration isolation using rubber elements and suit-

    able tuning[7] GUNT software for data acquisition via USB under

    Windows

    Technical data

    Engine number of cylinders: 4 piston mass: 40g additional mass: 41g

    Crank drive mass of connecting rod: 18g centre distance of cylinders: 35mm crank radius: 15mm length of connecting rod: 70mm

    Measuring ranges speed: 100 3000min-1 force: 0500N

    LxWxH: 420x370x350mm (model)Weight: approx. 40kgLxWxH: 230x230x80mm (display and control unit)Weight: approx. 1kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 50Hz/CSA,1 phase

    Scope of delivery

    1 engine model1 display and control unit1 GUNT software CD + USB cable1 set of instructional material

    Order number 040.18000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntTM 180Forces in reciprocating engines

    x

    Description

    investigation of free mass forcesand moments of a reciprocatingengine

    continuous adjustment of theangle between cranks

    simulation of single, two- or four-cylinder engines

    Every reciprocating engine generatesmass forces. The mass forces of the os-cillating masses cannot be com-pensated completely, while the massforces of the rotating masses are fullycompensated. By using several cylindersit is possible that the forces com-pensate each other. However, disturbingmoments may still occur.

    The experimental unit TM 180 enablesinvestigation of the free masses and mo-ments of a reciprocating engine with asingle cylinder, with two cylinders or withfour cylinders.

    The engine model comprises pistonswith plastic slide bushes. The slidebushes do not require lubrication. Foreach cylinder, the angle between crankscan be adjusted continuously. As an aid,marks are provided at 0, 90, 180and 270.

    The oscillating masses can be varied byusing additional weights at the pistons.The four-throw crankshaft is driven by aDC motor and a synchronous belt. Thespeed is electronically controlled and di-gitally displayed. The free forces and mo-ments are recorded by force sensorsplaced at the support of the model. Allelectronic functions are integrated inthe display and control unit. The displayand control unit also contains the USBinterface for data acquisition.

    The GUNT software enables the detailedevaluation of the signals of forces andmoments.

    Learning objectives/experiments

    effect of mass forces mass forces in dependence on the

    speed mass forces in dependence on the

    piston mass first and second order mass forces

    comparison of different crank drives 4-cylinder, symmetrical, 180 angle

    between cranks 4-cylinder, non-symmetrical, 90

    angle between cranks 2-cylinder, 180 angle between

    cranks single cylinder

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016207206

  • Machine dynamicsMass forces and mass balance gunt4 gunt

    TM 180Forces in reciprocating engines

    1 piston, 2 cylinder, 3 crankshaft, 4 foundation plate, 5 display and control unit, 6 forcesensor, 7 drive motor

    Left: definition of the rotating (m ROT) and oscillating (m OSC) masses at the crankdrive, right: possible configurations of the crankshaft: red: single cylinder, blue: two-cylinder,green: four-cylinder

    Left: effect of the oscillating (blue, FOSC) and the rotating (green, FROT) mass forces and theirvectorial addition to the free mass force (red, FU).Right: mass forces course during a crankshaft revolution

    Specification

    [1] experimental unit to investigate oscillating and ro-tating mass forces and moments of a reciprocatingengine with up to 4 cylinders

    [2] simulation of single, 2- or 4-cylinder engines[3] electronically commutated and speed-controlled

    drive motor with digital speed display[4] continuous adjustment of the angle between cranks[5] force sensors to measure forces and moments[6] vibration isolation using rubber elements and suit-

    able tuning[7] GUNT software for data acquisition via USB under

    Windows

    Technical data

    Engine number of cylinders: 4 piston mass: 40g additional mass: 41g

    Crank drive mass of connecting rod: 18g centre distance of cylinders: 35mm crank radius: 15mm length of connecting rod: 70mm

    Measuring ranges speed: 100 3000min-1 force: 0500N

    LxWxH: 420x370x350mm (model)Weight: approx. 40kgLxWxH: 230x230x80mm (display and control unit)Weight: approx. 1kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 50Hz/CSA,1 phase

    Scope of delivery

    1 engine model1 display and control unit1 GUNT software CD + USB cable1 set of instructional material

    Order number 040.18000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntTM 180Forces in reciprocating engines

    x

    Description

    investigation of free mass forcesand moments of a reciprocatingengine

    continuous adjustment of theangle between cranks

    simulation of single, two- or four-cylinder engines

    Every reciprocating engine generatesmass forces. The mass forces of the os-cillating masses cannot be com-pensated completely, while the massforces of the rotating masses are fullycompensated. By using several cylindersit is possible that the forces com-pensate each other. However, disturbingmoments may still occur.

    The experimental unit TM 180 enablesinvestigation of the free masses and mo-ments of a reciprocating engine with asingle cylinder, with two cylinders or withfour cylinders.

    The engine model comprises pistonswith plastic slide bushes. The slidebushes do not require lubrication. Foreach cylinder, the angle between crankscan be adjusted continuously. As an aid,marks are provided at 0, 90, 180and 270.

    The oscillating masses can be varied byusing additional weights at the pistons.The four-throw crankshaft is driven by aDC motor and a synchronous belt. Thespeed is electronically controlled and di-gitally displayed. The free forces and mo-ments are recorded by force sensorsplaced at the support of the model. Allelectronic functions are integrated inthe display and control unit. The displayand control unit also contains the USBinterface for data acquisition.

    The GUNT software enables the detailedevaluation of the signals of forces andmoments.

    Learning objectives/experiments

    effect of mass forces mass forces in dependence on the

    speed mass forces in dependence on the

    piston mass first and second order mass forces

    comparison of different crank drives 4-cylinder, symmetrical, 180 angle

    between cranks 4-cylinder, non-symmetrical, 90

    angle between cranks 2-cylinder, 180 angle between

    cranks single cylinder

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016207206

  • Machine dynamicsMass forces and mass balance gunt4 gunt

    GL 112Investigation of cam mechanisms

    1 interchangeable cam-shaped cam member, 2 nib, 3 spring, 4 mass disks, 5 flywheel,6 recorder drum, 7 drive motor

    1 engaging member (rolling receiver with plunger / flat receiver with plunger), 2 cam-shaped cam member; a tangent cam with roller plunger, b circular arc cam with flat plun-ger, c hollow cam with roller plunger

    Elevation curves; s stroke, opening angle; blue: hollow cam, red: circular arc cam,green: tangent cam

    Specification

    [1] investigation of cam mechanisms[2] cam-shaped cam members: tangent cam, hollow

    cam, 2 circular arm cams with different head radi-us

    [3] 2 different engaging members: flat receiver withplunger or rolling receiver with plunger

    [4] 3 interchangeable return springs and spring pre-load

    [5] drive motor with variable speed[6] oscillating mass can be increased with 5 additional

    weights[7] mechanical drum recorder with nib and coated pa-

    per[8] optical speed sensor[9] transparent protective cover for safe operation

    Technical data

    Drive motor DC asynchronous motor with frequency converter power: 250W speed: 60670min-1

    Cam-shaped cam member stroke, each: 15mm opening angle, each: 140Spring stiffness hard: 5,026N/m medium: 2,601N/m soft: 613N/m

    Masses additional weight: 200g plunger: 530g flat receiver: 93g rolling receiver: 20g

    Recorder: toothed belt drive

    LxWxH: 800x440x440mm (experimental unit)LxWxH: 360x320x160mm (display and control unit)Weight: approx. 68kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit1 display and control unit4 cam-shaped cam members2 engaging members3 return springs3 blocks of recorder paper1 set of tools1 set of instructional material

    Order number 030.11200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntGL 112Investigation of cam mechanisms

    Description

    record elevation curves of cammechanisms

    four different cam members, twodifferent engaging members

    influence of spring stiffness andmass on the dynamic behaviour

    Cam mechanisms play an important rolein the conversion of rotary motion intooscillatory motion. The most commonapplication of cam mechanisms is theactivation of valves in engines. This ap-plication is highly dynamic: valves mustbe opened and closed in very quick suc-cession. The contact between the valveand a cam must not be lost, otherwise itwould result in uncontrolled oscillations,valve float and possible damage to theengine.

    The GL 112 experimental unit allows thedynamic investigation of a cam mechan-ism at various speeds. Four typical camswith corresponding engaging membersare compared in terms of their motionbehaviour. The valve is simulated with amass and a spring.

    By varying the spring stiffness, springpreload and oscillating mass, it is pos-sible to study the dynamic limits of therespective cams. The cam motions andvalve raising can be clearly demon-strated using a stroboscope (not in-cluded).

    A recorder synchronised with the cammember records the actual elevationcurve of the cam mechanism. A speed-controlled drive motor with a large fly-wheel generates a speed as constant aspossible. The open design means thatthe motion is clearly visible in every de-tail.

    A transparent protective cover ensuressafe operation. The experimental unit isintended for demonstration in engineer-ing education. It is not suitable to beused as a test bench in the field of en-durance testing/tribology.

    Learning objectives/experiments

    elevation curves in non-matching enga-ging member

    elevation curve in sprung-engagingmember

    determine the limit speed and com-pare with theory

    influence of moving mass on the mo-tion of cam member/plunger

    influence of return-spring stiffness andpreload on the motion of cam mem-ber/plunger

    comparison of the elevation curves ofdifferent cam-member shapes

    comparison of elevation curves withtheory

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016209208

  • Machine dynamicsMass forces and mass balance gunt4 gunt

    GL 112Investigation of cam mechanisms

    1 interchangeable cam-shaped cam member, 2 nib, 3 spring, 4 mass disks, 5 flywheel,6 recorder drum, 7 drive motor

    1 engaging member (rolling receiver with plunger / flat receiver with plunger), 2 cam-shaped cam member; a tangent cam with roller plunger, b circular arc cam with flat plun-ger, c hollow cam with roller plunger

    Elevation curves; s stroke, opening angle; blue: hollow cam, red: circular arc cam,green: tangent cam

    Specification

    [1] investigation of cam mechanisms[2] cam-shaped cam members: tangent cam, hollow

    cam, 2 circular arm cams with different head radi-us

    [3] 2 different engaging members: flat receiver withplunger or rolling receiver with plunger

    [4] 3 interchangeable return springs and spring pre-load

    [5] drive motor with variable speed[6] oscillating mass can be increased with 5 additional

    weights[7] mechanical drum recorder with nib and coated pa-

    per[8] optical speed sensor[9] transparent protective cover for safe operation

    Technical data

    Drive motor DC asynchronous motor with frequency converter power: 250W speed: 60670min-1

    Cam-shaped cam member stroke, each: 15mm opening angle, each: 140Spring stiffness hard: 5,026N/m medium: 2,601N/m soft: 613N/m

    Masses additional weight: 200g plunger: 530g flat receiver: 93g rolling receiver: 20g

    Recorder: toothed belt drive

    LxWxH: 800x440x440mm (experimental unit)LxWxH: 360x320x160mm (display and control unit)Weight: approx. 68kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    1 experimental unit1 display and control unit4 cam-shaped cam members2 engaging members3 return springs3 blocks of recorder paper1 set of tools1 set of instructional material

    Order number 030.11200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntGL 112Investigation of cam mechanisms

    Description

    record elevation curves of cammechanisms

    four different cam members, twodifferent engaging members

    influence of spring stiffness andmass on the dynamic behaviour

    Cam mechanisms play an important rolein the conversion of rotary motion intooscillatory motion. The most commonapplication of cam mechanisms is theactivation of valves in engines. This ap-plication is highly dynamic: valves mustbe opened and closed in very quick suc-cession. The contact between the valveand a cam must not be lost, otherwise itwould result in uncontrolled oscillations,valve float and possible damage to theengine.

    The GL 112 experimental unit allows thedynamic investigation of a cam mechan-ism at various speeds. Four typical camswith corresponding engaging membersare compared in terms of their motionbehaviour. The valve is simulated with amass and a spring.

    By varying the spring stiffness, springpreload and oscillating mass, it is pos-sible to study the dynamic limits of therespective cams. The cam motions andvalve raising can be clearly demon-strated using a stroboscope (not in-cluded).

    A recorder synchronised with the cammember records the actual elevationcurve of the cam mechanism. A speed-controlled drive motor with a large fly-wheel generates a speed as constant aspossible. The open design means thatthe motion is clearly visible in every de-tail.

    A transparent protective cover ensuressafe operation. The experimental unit isintended for demonstration in engineer-ing education. It is not suitable to beused as a test bench in the field of en-durance testing/tribology.

    Learning objectives/experiments

    elevation curves in non-matching enga-ging member

    elevation curve in sprung-engagingmember

    determine the limit speed and com-pare with theory

    influence of moving mass on the mo-tion of cam member/plunger

    influence of return-spring stiffness andpreload on the motion of cam mem-ber/plunger

    comparison of the elevation curves ofdifferent cam-member shapes

    comparison of elevation curves withtheory

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016209208

  • Machine dynamicsVibration isolation gunt4 gunt

    TM 182Vibrations on machine foundations

    1 vibration generator as machine, 2 coil spring, 3 foundation, 4 coil spring, 5 switch cabin-et, 6 elastic support, 7 extra masses for the foundation, 8 frame

    Amplitude-frequency response at unbalance excitation and effect of vibration absorbers m:mass, blue amplitude x1: mass 1, red amplitude x2: mass 2, A: absorption point

    Software screenshot: measurement and representation of operational vibration mode

    Specification

    [1] display and study vibrations on machine foundations[2] vibration generator excites vibrations by imbalance[3] vibration-free laboratory operation thanks to addi-

    tional vibration isolation of the foundation[4] 2 brushless high-performance servomotors to drive

    the vibration generator[5] eccentricity, rotational frequency, direction of rota-

    tion, adjustable phase position and frequency ratio[6] variable arrangement of vibration absorbers[7] vibration measurement via acceleration sensors[8] inductive displacement sensor records the eccent-

    ricity of the imbalance masses[9] GUNT software with control functions and data ac-

    quisition via USB under Windows[10] TM 182.01 piston compressor can be used as al-

    ternative real vibration generator

    Technical data

    Drive motors max. speed: 6000min-1 max. torque: approx. 3,40Nm

    Machine mounted on a plate mass: max. 26kg (incl. extra weights 4x 2kg) max. imbalance: 2x 500cmg max. imbalance force: 2x 500N (up to 3000min-1)

    Foundation mass: max. 73kg (incl. extra weights 5x 9,4kg) min. natural frequency: 2,66Hz

    Compression springs spring stiffness C: 2,44N/mm139,53N/mm transverse stiffness Cq: 0,30N/mm90,0N/mm

    Measuring range acceleration: 490m/s2

    LxWxH: 1140x800x1170mmWeight: approx. 311kg

    Required for operation

    230V, 50/60Hz, 1 phase

    Scope of delivery

    1 trainer1 vibration generator1 GUNT software CD + USB cable1 set of instructional material

    Order number 040.18200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 01.2017

    guntTM 182Vibrations on machine foundations

    x

    Description

    vibrations generated via imbal-ance

    An indispensable part of machine designis the reduction of vibrations. For ex-ample, an elastic, vibration-isolatingsetup of the machine avoids disruptivevibrations being transferred to the sur-roundings.

    The TM 182 unit can be used to studythe issue of machine foundations andisolation from vibrations using a practic-al example. To do this, vibrations are de-liberately produced on an elasticallymounted machine. The transfer of thesevibrations to the foundation is meas-ured. It is then possible to test differentadjustments using different springs andto study absorbing effects using vibra-tion absorbers.

    The experimental setup consists of amachine, a foundation and a frame. A vi-bration generator serves as the ma-chine, consisting of two independentlydriven imbalance sets. The imbalancesets are driven by servomotors so thatany excitation forces and force direc-tions can be generated. Alternatively, apiston compressor (TM 182.01) can beused to generate vibrations.

    The machine is mounted on a foundationby means of springs and dampers. Thesurroundings are represented by thefoundation, on which the effectiveness ofthe vibration isolation is measured.

    The foundation is connected to the actu-al frame of the trainer via additional coilsprings. This dual vibration isolation, to-gether with the large weight of thefoundation itself, guarantees a vibration-free operation in the laboratory even un-der unfavourable experimental condi-tions. A switch cabinet is attached to theframe, housing the control system,power supply and data acquisition.

    Acceleration sensors are used to meas-ure deflection, velocity and accelerationof the vibrations at different points. Us-ing these measured values, it is possibleto calculate and display the operationalvibration modes.

    A comprehensive software program isprovided to control the operating condi-tions and to capture and analyse thedata. The unit is connected to the PC viaUSB.

    Learning objectives/experiments

    familiarisation with vibration phenom-ena on machine foundations

    adjust the foundation for different ex-citation forces

    investigate vibration absorbers investigate the effect of additional

    damping compare metal springs and rubber

    springs measure and analyse vibrations determine operational vibration modes

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 01.2017211210

  • Machine dynamicsVibration isolation gunt4 gunt

    TM 182Vibrations on machine foundations

    1 vibration generator as machine, 2 coil spring, 3 foundation, 4 coil spring, 5 switch cabin-et, 6 elastic support, 7 extra masses for the foundation, 8 frame

    Amplitude-frequency response at unbalance excitation and effect of vibration absorbers m:mass, blue amplitude x1: mass 1, red amplitude x2: mass 2, A: absorption point

    Software screenshot: measurement and representation of operational vibration mode

    Specification

    [1] display and study vibrations on machine foundations[2] vibration generator excites vibrations by imbalance[3] vibration-free laboratory operation thanks to addi-

    tional vibration isolation of the foundation[4] 2 brushless high-performance servomotors to drive

    the vibration generator[5] eccentricity, rotational frequency, direction of rota-

    tion, adjustable phase position and frequency ratio[6] variable arrangement of vibration absorbers[7] vibration measurement via acceleration sensors[8] inductive displacement sensor records the eccent-

    ricity of the imbalance masses[9] GUNT software with control functions and data ac-

    quisition via USB under Windows[10] TM 182.01 piston compressor can be used as al-

    ternative real vibration generator

    Technical data

    Drive motors max. speed: 6000min-1 max. torque: approx. 3,40Nm

    Machine mounted on a plate mass: max. 26kg (incl. extra weights 4x 2kg) max. imbalance: 2x 500cmg max. imbalance force: 2x 500N (up to 3000min-1)

    Foundation mass: max. 73kg (incl. extra weights 5x 9,4kg) min. natural frequency: 2,66Hz

    Compression springs spring stiffness C: 2,44N/mm139,53N/mm transverse stiffness Cq: 0,30N/mm90,0N/mm

    Measuring range acceleration: 490m/s2

    LxWxH: 1140x800x1170mmWeight: approx. 311kg

    Required for operation

    230V, 50/60Hz, 1 phase

    Scope of delivery

    1 trainer1 vibration generator1 GUNT software CD + USB cable1 set of instructional material

    Order number 040.18200

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 01.2017

    guntTM 182Vibrations on machine foundations

    x

    Description

    vibrations generated via imbal-ance

    An indispensable part of machine designis the reduction of vibrations. For ex-ample, an elastic, vibration-isolatingsetup of the machine avoids disruptivevibrations being transferred to the sur-roundings.

    The TM 182 unit can be used to studythe issue of machine foundations andisolation from vibrations using a practic-al example. To do this, vibrations are de-liberately produced on an elasticallymounted machine. The transfer of thesevibrations to the foundation is meas-ured. It is then possible to test differentadjustments using different springs andto study absorbing effects using vibra-tion absorbers.

    The experimental setup consists of amachine, a foundation and a frame. A vi-bration generator serves as the ma-chine, consisting of two independentlydriven imbalance sets. The imbalancesets are driven by servomotors so thatany excitation forces and force direc-tions can be generated. Alternatively, apiston compressor (TM 182.01) can beused to generate vibrations.

    The machine is mounted on a foundationby means of springs and dampers. Thesurroundings are represented by thefoundation, on which the effectiveness ofthe vibration isolation is measured.

    The foundation is connected to the actu-al frame of the trainer via additional coilsprings. This dual vibration isolation, to-gether with the large weight of thefoundation itself, guarantees a vibration-free operation in the laboratory even un-der unfavourable experimental condi-tions. A switch cabinet is attached to theframe, housing the control system,power supply and data acquisition.

    Acceleration sensors are used to meas-ure deflection, velocity and accelerationof the vibrations at different points. Us-ing these measured values, it is possibleto calculate and display the operationalvibration modes.

    A comprehensive software program isprovided to control the operating condi-tions and to capture and analyse thedata. The unit is connected to the PC viaUSB.

    Learning objectives/experiments

    familiarisation with vibration phenom-ena on machine foundations

    adjust the foundation for different ex-citation forces

    investigate vibration absorbers investigate the effect of additional

    damping compare metal springs and rubber

    springs measure and analyse vibrations determine operational vibration modes

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 01.2017211210

  • Machine dynamicsVibration isolation guntgunt

    VORLAGEMomentengleichgewicht am zweiarmigen Hebel

    Beschreibung

    Grundlagen des Momentengleich-gewichts und Anwendung des He-belgesetzes

    Mit EM 049 werden am Beispiel eineszweiarmigen Hebels die Grundlagen desMomentengleichgewichts untersucht.Auftretende Momente am Hebel sollenins Gleichgewicht gebracht werden.

    Ein mittig gelagerter Balken stellt einenzweiarmigen Hebel dar. Auf den Hebel

    werden verschiebbare Reiter gesetztund Gewichte aufgebracht. Durch Ver-schieben der Gewichte wird ein Gleich-gewicht eingestellt. Abstnde vom Dreh-punkt, die Hebelarme, knnen auf einerintegrierten Skala abgelesen werden.Die Berechnung der Hebelarme wird imVersuch berprft.

    Eine Standsule trgt den Hebel, einestabile Grundplatte gewhrleistet siche-ren Stand.

    Lerninhalte/bungen

    Grundlagen des Momentengleichge-wichts: angreifende Krfte, erzeugteMomente und Gleichgewicht

    Wirkung von Krften in Abhngigkeitvom Hebelarm

    Spezifikationen

    [1]Untersuchung des Momentengleich-gewichts am zweiarmigen Hebel

    [2] kugelgelagerter Balken mit integrier-tem Mastab als zweiarmiger Hebel

    [3]stabiler, standfester Rahmen ausMetall

    [4]Aufbewahrungssystem fr die Teile

    Technische Daten

    Balken LxBxH: 600x30x10mm, mittig kugel-

    gelagert Hebellnge: 2x 300mmGewichte 3x 1N (Hnger) 6x 5N 12x 1N

    LxBxH: 600x300x410mmGewicht: ca. 10kgAufbewahrungssystem:LxBxH: 200x70x40mmLxBxH: 95x68x35mm

    Lieferumfang

    1 Versuchsgert1 Satz Gewichte1 Satz didaktisches Begleitmaterial

    Artikel-Nummer 049.04900

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    Wir behalten uns das Recht vor, technische nderungen ohne Ankndigung vorzunehmen. Seite 1/1 - 08.2016

    VORLAGE

    4 guntTM 182.01Piston compressor for TM 182

    Description

    as a real machine, the pistoncompressor generates vibrationsfor the trainer TM 182

    A piston compressor is a typical ma-chine, on which imbalance and oscillat-ing masses generate vibrations. Balan-cing the machine does not adequatelyreduce these vibrations. In this case, avibration isolating machine foundationhelps to avoid unwanted vibrations frombeing transmitted to the surroundings.

    The TM 182.01 compressor is used asa model of a real machine for thetrainer TM 182. The compressor is onlyused here as a machine that gener-ates vibrations on the foundation. Thecompressed air generation function isnot used.

    The TM 182.01 is available as a com-plete assembly and consists of a singlecylinder compressor with integrated mo-tor. To generate vibrations with differentfrequencies, the compressor is fittedwith a frequency converter.

    Learning objectives/experiments

    in conjunction with trainer TM 182:generating vibrations on machinefoundations with a real machine

    Specification

    [1] air-cooled single cylinder piston com-pressor for installation in trainerTM 182

    [2] compressor as vibration generator[3] vibration generator simulates ma-

    chine vibrations[4] speed adjustable using frequency

    converter

    Technical data

    Air-cooled single cylinder compressorwith frequency converter mass: 16kg speed: 5001800min-1

    LxWxH: 420x300x300mmWeight: approx. 22kg

    Scope of delivery

    1 piston compressor with fre-quency converter

    1 manual

    Order number 040.18201

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 12.2016

    Installation and commissioning

    Guaranteed trouble-free by professional GUNT staffHave your new equipment commis-sioned by trained expert personnel. Our highly qualified staff will gladly assist you.

    Commissioning of the equipment includes the following services:

    setup of equipment in the laboratory

    connection to the laboratorys supply systems

    commissioning the equipment

    testing the equipment

    213212

  • Machine dynamicsVibration isolation guntgunt

    VORLAGEMomentengleichgewicht am zweiarmigen Hebel

    Beschreibung

    Grundlagen des Momentengleich-gewichts und Anwendung des He-belgesetzes

    Mit EM 049 werden am Beispiel eineszweiarmigen Hebels die Grundlagen desMomentengleichgewichts untersucht.Auftretende Momente am Hebel sollenins Gleichgewicht gebracht werden.

    Ein mittig gelagerter Balken stellt einenzweiarmigen Hebel dar. Auf den Hebel

    werden verschiebbare Reiter gesetztund Gewichte aufgebracht. Durch Ver-schieben der Gewichte wird ein Gleich-gewicht eingestellt. Abstnde vom Dreh-punkt, die Hebelarme, knnen auf einerintegrierten Skala abgelesen werden.Die Berechnung der Hebelarme wird imVersuch berprft.

    Eine Standsule trgt den Hebel, einestabile Grundplatte gewhrleistet siche-ren Stand.

    Lerninhalte/bungen

    Grundlagen des Momentengleichge-wichts: angreifende Krfte, erzeugteMomente und Gleichgewicht

    Wirkung von Krften in Abhngigkeitvom Hebelarm

    Spezifikationen

    [1]Untersuchung des Momentengleich-gewichts am zweiarmigen Hebel

    [2] kugelgelagerter Balken mit integrier-tem Mastab als zweiarmiger Hebel

    [3]stabiler, standfester Rahmen ausMetall

    [4]Aufbewahrungssystem fr die Teile

    Technische Daten

    Balken LxBxH: 600x30x10mm, mittig kugel-

    gelagert Hebellnge: 2x 300mmGewichte 3x 1N (Hnger) 6x 5N 12x 1N

    LxBxH: 600x300x410mmGewicht: ca. 10kgAufbewahrungssystem:LxBxH: 200x70x40mmLxBxH: 95x68x35mm

    Lieferumfang

    1 Versuchsgert1 Satz Gewichte1 Satz didaktisches Begleitmaterial

    Artikel-Nummer 049.04900

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    Wir behalten uns das Recht vor, technische nderungen ohne Ankndigung vorzunehmen. Seite 1/1 - 08.2016

    VORLAGE

    4 guntTM 182.01Piston compressor for TM 182

    Description

    as a real machine, the pistoncompressor generates vibrationsfor the trainer TM 182

    A piston compressor is a typical ma-chine, on which imbalance and oscillat-ing masses generate vibrations. Balan-cing the machine does not adequatelyreduce these vibrations. In this case, avibration isolating machine foundationhelps to avoid unwanted vibrations frombeing transmitted to the surroundings.

    The TM 182.01 compressor is used asa model of a real machine for thetrainer TM 182. The compressor is onlyused here as a machine that gener-ates vibrations on the foundation. Thecompressed air generation function isnot used.

    The TM 182.01 is available as a com-plete assembly and consists of a singlecylinder compressor with integrated mo-tor. To generate vibrations with differentfrequencies, the compressor is fittedwith a frequency converter.

    Learning objectives/experiments

    in conjunction with trainer TM 182:generating vibrations on machinefoundations with a real machine

    Specification

    [1] air-cooled single cylinder piston com-pressor for installation in trainerTM 182

    [2] compressor as vibration generator[3] vibration generator simulates ma-

    chine vibrations[4] speed adjustable using frequency

    converter

    Technical data

    Air-cooled single cylinder compressorwith frequency converter mass: 16kg speed: 5001800min-1

    LxWxH: 420x300x300mmWeight: approx. 22kg

    Scope of delivery

    1 piston compressor with fre-quency converter

    1 manual

    Order number 040.18201

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 12.2016

    Installation and commissioning

    Guaranteed trouble-free by professional GUNT staffHave your new equipment commis-sioned by trained expert personnel. Our highly qualified staff will gladly assist you.

    Commissioning of the equipment includes the following services:

    setup of equipment in the laboratory

    connection to the laboratorys supply systems

    commissioning the equipment

    testing the equipment

    213212

  • 215214

    Machine dynamicsMachinery diagnosis gunt4

    Machinery diagnosis

    The aim of machinery diagnosis, also known as machinery status monitoring or condition monitoring system (CMS), is to conduct needs-based maintenance or repair and therefore to minimise the repair and downtimes of a machine. Damage should be

    detected when it occurs. This increases the overall equipment effectiveness (OEE), a measure of the added value of a plant, and optimises the cost structure.

    The significance of vibrations in machinery diagnosis

    The mechanical condition of a machine or its parts can be assessed by the nature and extent of the vibrations produced. To do this, vibrations are recorded and analysed by sensors and measuring instruments. The correct interpretation of the

    measuring signals requires a good understanding of the operat-ing mechanisms and a certain amount of experience.

    Machinery diagnosis is used for

    weak-point analysis to optimise a process or to detect expected errors in good time

    condition-based maintenance, e.g. the use of car tyres when these fail to meet the prescribed minimum tread depth

    avoid or minimise failures thanks to pre-determined maintenance, e.g. oil change in motor vehicle at a fixed interval or after a certain mileage

    Machinery diagnosis is conducted on

    machines at standstill by: disassembly and visual inspection wear measurement crack testing (X-rays, ultrasound,

    magnetic penetration, natural frequency measurement)

    running machines by: measuring the state variables,

    e.g. vibration measurement acoustic measurement extension of the shaft lubricant analysis

    Machinery diagnosis leads to

    increased and optimum use of the lifecycle of plant and machinery

    improved operational safety increased plant reliability optimised operating processes reduced disturbances reduced costs

    What characterises the condition of a machine? The following are some measurable state variables using the example of a diesel generator:

    Causes of vibration Examples from practice for remedy

    1. Circumferential or periodic forces from pressing or punching jamming, alignment errors

    Elastic vibration-damping mount of the machine to prevent/minimise propagation of the vibration.

    2. Inertial forces due to rotating and oscillating masses reciprocating pistons rotating imbalances

    Tyres are balanced to correct imbalances.

    3. Plungers play in the contact points and thereby

    changing contact surfaces in positive force transmission

    contact loss in the case of non-positive force transmission

    rolling over faults in the surface

    Preloaded bearings make it possible to align the shaft precisely, increase the rigidity and reduce the bearing clearance.

    Good lubrication must be provided to minimise damage to the gears and to prevent the occurrence of fault points in the surface.

    4. Gas forces expansion due to the build up of dynamic

    gas forces and excitation of longitudinal and bending vibrations

    non-uniform rotation and excitation of torsional vibrations

    Forces occur in the crankcase from the transmission of gas forces from the cylinder head to the crankshaft bearing. Stiffened crankcase and expanding screws avoid vibrations and fatigue in the material.

    5. Flow forces surfaces are excited by turbulence, with asso-

    ciated pressure fluctuations in the form of positive surge waves (howling, noise, whis-tling); this is the opposite of sound radiation

    periodic flow forces on blades

    When designing rotors, such as those for fans and compressors, the number and shape of the rotors must be taken into account relation to of the possible occurrence of vibrations.

    6. Electromagnetic forces dynamic magnetic fields or cyclical changes

    in the geometry (pole faces) similarity to excitation via pressure

    fluctuations (transformer hum, stator vibrations in engines)

    Asynchronous motor: In an asymmetrical air gap, the circulating magnetic forces cause torsional and bending vibrations. By varying the air gap between stator and rotor, it is possible to change the mechanical vibrations that are produced.

    Cylinder: pressure

    Piston ring nuts: measurable wear

    Cooling water: temperature, chemical composition

    Exhaust gas: temperature, exhaust emissions, soot

    Generator: current, voltage, electromagnetic radiation

    Lines with connecting points and seals: tightness

    Oil: fill level, age, temperature, pressure

    Shaft: speed, bearing, vibrations, occurrence of vibrations (imbalance)

    Foundation: noise, vibrations

  • 215214

    Machine dynamicsMachinery diagnosis gunt4

    Machinery diagnosis

    The aim of machinery diagnosis, also known as machinery status monitoring or condition monitoring system (CMS), is to conduct needs-based maintenance or repair and therefore to minimise the repair and downtimes of a machine. Damage should be

    detected when it occurs. This increases the overall equipment effectiveness (OEE), a measure of the added value of a plant, and optimises the cost structure.

    The significance of vibrations in machinery diagnosis

    The mechanical condition of a machine or its parts can be assessed by the nature and extent of the vibrations produced. To do this, vibrations are recorded and analysed by sensors and measuring instruments. The correct interpretation of the

    measuring signals requires a good understanding of the operat-ing mechanisms and a certain amount of experience.

    Machinery diagnosis is used for

    weak-point analysis to optimise a process or to detect expected errors in good time

    condition-based maintenance, e.g. the use of car tyres when these fail to meet the prescribed minimum tread depth

    avoid or minimise failures thanks to pre-determined maintenance, e.g. oil change in motor vehicle at a fixed interval or after a certain mileage

    Machinery diagnosis is conducted on

    machines at standstill by: disassembly and visual inspection wear measurement crack testing (X-rays, ultrasound,

    magnetic penetration, natural frequency measurement)

    running machines by: measuring the state variables,

    e.g. vibration measurement acoustic measurement extension of the shaft lubricant analysis

    Machinery diagnosis leads to

    increased and optimum use of the lifecycle of plant and machinery

    improved operational safety increased plant reliability optimised operating processes reduced disturbances reduced costs

    What characterises the condition of a machine? The following are some measurable state variables using the example of a diesel generator:

    Causes of vibration Examples from practice for remedy

    1. Circumferential or periodic forces from pressing or punching jamming, alignment errors

    Elastic vibration-damping mount of the machine to prevent/minimise propagation of the vibration.

    2. Inertial forces due to rotating and oscillating masses reciprocating pistons rotating imbalances

    Tyres are balanced to correct imbalances.

    3. Plungers play in the contact points and thereby

    changing contact surfaces in positive force transmission

    contact loss in the case of non-positive force transmission

    rolling over faults in the surface

    Preloaded bearings make it possible to align the shaft precisely, increase the rigidity and reduce the bearing clearance.

    Good lubrication must be provided to minimise damage to the gears and to prevent the occurrence of fault points in the surface.

    4. Gas forces expansion due to the build up of dynamic

    gas forces and excitation of longitudinal and bending vibrations

    non-uniform rotation and excitation of torsional vibrations

    Forces occur in the crankcase from the transmission of gas forces from the cylinder head to the crankshaft bearing. Stiffened crankcase and expanding screws avoid vibrations and fatigue in the material.

    5. Flow forces surfaces are excited by turbulence, with asso-

    ciated pressure fluctuations in the form of positive surge waves (howling, noise, whis-tling); this is the opposite of sound radiation

    periodic flow forces on blades

    When designing rotors, such as those for fans and compressors, the number and shape of the rotors must be taken into account relation to of the possible occurrence of vibrations.

    6. Electromagnetic forces dynamic magnetic fields or cyclical changes

    in the geometry (pole faces) similarity to excitation via pressure

    fluctuations (transformer hum, stator vibrations in engines)

    Asynchronous motor: In an asymmetrical air gap, the circulating magnetic forces cause torsional and bending vibrations. By varying the air gap between stator and rotor, it is possible to change the mechanical vibrations that are produced.

    Cylinder: pressure

    Piston ring nuts: measurable wear

    Cooling water: temperature, chemical composition

    Exhaust gas: temperature, exhaust emissions, soot

    Generator: current, voltage, electromagnetic radiation

    Lines with connecting points and seals: tightness

    Oil: fill level, age, temperature, pressure

    Shaft: speed, bearing, vibrations, occurrence of vibrations (imbalance)

    Foundation: noise, vibrations

  • 217216

    Machine dynamicsMachinery diagnosis gunt4

    Machinery diagnosis

    Internal forces and energies of the machine are of real inter-est for machine diagnostics. These variables cannot be mea-sured directly, but their effects vibration can. Vibration measurement and analysis allows a picture of these forces to be obtained. We can see the structure of the forces, their causes and their behaviour over time from the vibration mea-surements. The measuring signals are mostly frequency spec-tra, which arise from superposition of various vibrations with different frequencies. Some of these vibrations are part of the

    proper normal operation of the machine, others are amplified or produced by defects. By interpreting the measuring sig-nals, we can assess the condition of the machine and identify defects.

    In machinery diagnosis we differentiate between characteristic value monitoring and frequency analysis.

    Methods of machinery diagnosis

    In characteristicvalue monitoring, the amplitude of the measured vibration signal is compared to a limit value. Characteristic-value monitoring can be performed continuously and automatically. It is easy to implement and its use requires relatively little expertise. One widely applied characteristic value is the effective value of the velocity of the vibration in the frequency range of 10 1000 Hz. This is used in the DIN ISO 10816-3 standard, that relates to drive systems. In simple standard units, characteristic-value monitoring is sufficient for diagnostics. In more complex systems, the reliability of this method is sometimes not sufficient.

    Indicators of damage to drive elements include:

    deposits on the running surfaces, e.g. fretting corrosion in the bore of an inner ring

    corrosion due to moisture and bearing standstill

    surface distress in the form of pitting

    bearing damage caused by slip

    cracks or fractures

    If the first signs of damage to the machine are ignored, the damage increases and can lead to fracture.

    The use of the analysis in the frequency domain is considerably more complex but also more powerful. The analysis makes it possible to identify the nature of damage. Consequently, repair measures can be implemented effectively. Frequency analysis requires a good understanding of the mechanisms of action and sufficient experience in interpreting the results. Usually, frequency analysis is used as a complementary method in conjunction with characteristic-value monitoring.

    Typical vibration signals in the time domain

    Acceleration Velocity Path

    A (t)

    t

    PT 500.04 PC Based Evaluation Software & Instrumentation Kitgunt

    Mechanical vibrations Causes, mechanisms of occurrence, imbalance, Laval rotor, resonance, damping, shock

    Vibration measuring methods Measuring sensor, measuring amplifier, representation, oscilloscope, speed measurement

    Vibration analysis Acceleration, vibration velocity, vibration path, characteristics, representation in time and frequency domain, spectrum, FFT (Fast Fourier Transformation), orders, tracking analysis, envelope analysis, orbit, trajectory

    Machinery diagnosis Bearing and shaft vibrations, permissible vibration levels, roller bearing damage, electromagnetic vibrations, imbalance vibrations and balancing, gear damage, vibrations on belt drives, cavitation in pumps, blade oscillations, vibrations and shocks in crank mechanisms, speed-dependent vibrations

    Learning objectives

    Damage on drive elements using the example of bearings

    Furthermore, practical skills and experience are taught for dealing with and assembling machine elements such as bearings, shafts and couplings. The structure of mechanical machines can also be studied.

    Questions provide valuable experience for future industrial practice:

    Which sensor should I use?

    Where can I expect a usable measuring signal?

    How do I remove interference effectively?

  • 217216

    Machine dynamicsMachinery diagnosis gunt4

    Machinery diagnosis

    Internal forces and energies of the machine are of real inter-est for machine diagnostics. These variables cannot be mea-sured directly, but their effects vibration can. Vibration measurement and analysis allows a picture of these forces to be obtained. We can see the structure of the forces, their causes and their behaviour over time from the vibration mea-surements. The measuring signals are mostly frequency spec-tra, which arise from superposition of various vibrations with different frequencies. Some of these vibrations are part of the

    proper normal operation of the machine, others are amplified or produced by defects. By interpreting the measuring sig-nals, we can assess the condition of the machine and identify defects.

    In machinery diagnosis we differentiate between characteristic value monitoring and frequency analysis.

    Methods of machinery diagnosis

    In characteristicvalue monitoring, the amplitude of the measured vibration signal is compared to a limit value. Characteristic-value monitoring can be performed continuously and automatically. It is easy to implement and its use requires relatively little expertise. One widely applied characteristic value is the effective value of the velocity of the vibration in the frequency range of 10 1000 Hz. This is used in the DIN ISO 10816-3 standard, that relates to drive systems. In simple standard units, characteristic-value monitoring is sufficient for diagnostics. In more complex systems, the reliability of this method is sometimes not sufficient.

    Indicators of damage to drive elements include:

    deposits on the running surfaces, e.g. fretting corrosion in the bore of an inner ring

    corrosion due to moisture and bearing standstill

    surface distress in the form of pitting

    bearing damage caused by slip

    cracks or fractures

    If the first signs of damage to the machine are ignored, the damage increases and can lead to fracture.

    The use of the analysis in the frequency domain is considerably more complex but also more powerful. The analysis makes it possible to identify the nature of damage. Consequently, repair measures can be implemented effectively. Frequency analysis requires a good understanding of the mechanisms of action and sufficient experience in interpreting the results. Usually, frequency analysis is used as a complementary method in conjunction with characteristic-value monitoring.

    Typical vibration signals in the time domain

    Acceleration Velocity Path

    A (t)

    t

    PT 500.04 PC Based Evaluation Software & Instrumentation Kitgunt

    Mechanical vibrations Causes, mechanisms of occurrence, imbalance, Laval rotor, resonance, damping, shock

    Vibration measuring methods Measuring sensor, measuring amplifier, representation, oscilloscope, speed measurement

    Vibration analysis Acceleration, vibration velocity, vibration path, characteristics, representation in time and frequency domain, spectrum, FFT (Fast Fourier Transformation), orders, tracking analysis, envelope analysis, orbit, trajectory

    Machinery diagnosis Bearing and shaft vibrations, permissible vibration levels, roller bearing damage, electromagnetic vibrations, imbalance vibrations and balancing, gear damage, vibrations on belt drives, cavitation in pumps, blade oscillations, vibrations and shocks in crank mechanisms, speed-dependent vibrations

    Learning objectives

    Damage on drive elements using the example of bearings

    Furthermore, practical skills and experience are taught for dealing with and assembling machine elements such as bearings, shafts and couplings. The structure of mechanical machines can also be studied.

    Questions provide valuable experience for future industrial practice:

    Which sensor should I use?

    Where can I expect a usable measuring signal?

    How do I remove interference effectively?

  • 219218

    Machine dynamicsMachinery diagnosis gunt4

    Measurement of the bearing vibrations of the out-of-balance machine (original imbalance U).

    Measurement of bearing vibrations according to which known imbalance was added to the machine (test imbalance T). It is possible to calculate the original imbalance by comparing of the two measurements.

    Calculation of the size and position of the balancing masses (C) to be added or removed. Control measurement (A) after performing mass correction. Depending on the success of balancing, this procedure is repeated until the desired limit value of the bearing vibration is met.

    Process of envelope analysis

    Measurement of high-frequency shock signal and high-pass filtering to suppress low-frequency interference (imbalance, alignment errors)

    Rectification of the high-frequency signal

    Envelope of the rectified signal by low-pass filtering

    Conduct FFT to obtain spectrum of the envelope. The speed (10 Hz) and the shock frequency (35,8 Hz) can be seen clearly. The sidebands spaced at the speed (35,8 -10, 35,8 +10) indicate an amplitude modulation. This is evidence of damage to the outer ring with rotating load.

    Machinery diagnosis

    1. Identification of bearing damage

    Envelope analysis

    Envelope analysis is used to identify, for example, damage to roller bearings and gears. The damage produces shocks with very-high-frequency vibration components. The low shock fre-quency that is relevant for diagnosing damage can be identified

    in a normal spectrum only with difficulty, or may even be impos-sible to identify. Envelope analysis demodulates the high-fre-quency shock signal and allows the shock frequency to be measured.

    2. Field balancing

    In balancing we try to bring the centre of gravity of the rotor back in line with the axis of rotation. To do this, weights are added to or removed from the rotor. In order to determine the position and size of the required balancing masses, it is first necessary to

    determine the unknown imbalance. Since the imbalance cannot be measured directly, it must be determined indirectly from the measurable bearing vibrations.

    3. Identification of cracks in shafts

    Shafts with cracks produce a characteristic vibration signal that can be used to identify the crack. One analysis method is tracking analysis, in which the vibration signal is recorded over

    a large speed range and studied in a special filter for different orders of rotation-frequency.

    Typical experimental results in machine diagnosis

    The illustration shows the envelope spectrum of typical bearing damage. To obtain a display that is independent of rotation frequency, the order was chosen as the abscissa. A rotational frequency signal is of the first order. Frequency lines are read in multiple of the order 3,58. This indicates damage to the outer ring of the bearing. The absence of first-order sidebands indicates a constant force direction, i.e. belt tension in this case, and no rotating imbalanced load.

    Graph A shows the component of the first-order bearing vibration (1), graph B shows the component of the second order (2).

    Condition without crack:

    The first-order bearing vibrations increase normally with speed because of the imbalance. The second-order bearing vibrations are very small.

    Condition with deep crack:

    Whereas the first-order bearing vibrations show behaviour similar to a shaft without a crack, there is a very sharp rise in the second-order vibrations in the medium speed range, which is a strong indication of a crack.

    acceleration, velocity, path

    PT 500.04 PC Based Evaluation Software & Instrumentation Kitgunt

    10 Hz

    35,8 Hz

    35,8-10 35,8+10 71,6 Hz

    0 20 40 60 80 100 120 Hz

    Tracking analysis shaft without crack

    Tracking analysis shaft with crack

    U

    U+T

    A

    3,58 7,16 10,74 14,32

    U

    U

    C

    A

    U

    T

    U+T

    Orders:

  • 219218

    Machine dynamicsMachinery diagnosis gunt4

    Measurement of the bearing vibrations of the out-of-balance machine (original imbalance U).

    Measurement of bearing vibrations according to which known imbalance was added to the machine (test imbalance T). It is possible to calculate the original imbalance by comparing of the two measurements.

    Calculation of the size and position of the balancing masses (C) to be added or removed. Control measurement (A) after performing mass correction. Depending on the success of balancing, this procedure is repeated until the desired limit value of the bearing vibration is met.

    Process of envelope analysis

    Measurement of high-frequency shock signal and high-pass filtering to suppress low-frequency interference (imbalance, alignment errors)

    Rectification of the high-frequency signal

    Envelope of the rectified signal by low-pass filtering

    Conduct FFT to obtain spectrum of the envelope. The speed (10 Hz) and the shock frequency (35,8 Hz) can be seen clearly. The sidebands spaced at the speed (35,8 -10, 35,8 +10) indicate an amplitude modulation. This is evidence of damage to the outer ring with rotating load.

    Machinery diagnosis

    1. Identification of bearing damage

    Envelope analysis

    Envelope analysis is used to identify, for example, damage to roller bearings and gears. The damage produces shocks with very-high-frequency vibration components. The low shock fre-quency that is relevant for diagnosing damage can be identified

    in a normal spectrum only with difficulty, or may even be impos-sible to identify. Envelope analysis demodulates the high-fre-quency shock signal and allows the shock frequency to be measured.

    2. Field balancing

    In balancing we try to bring the centre of gravity of the rotor back in line with the axis of rotation. To do this, weights are added to or removed from the rotor. In order to determine the position and size of the required balancing masses, it is first necessary to

    determine the unknown imbalance. Since the imbalance cannot be measured directly, it must be determined indirectly from the measurable bearing vibrations.

    3. Identification of cracks in shafts

    Shafts with cracks produce a characteristic vibration signal that can be used to identify the crack. One analysis method is tracking analysis, in which the vibration signal is recorded over

    a large speed range and studied in a special filter for different orders of rotation-frequency.

    Typical experimental results in machine diagnosis

    The illustration shows the envelope spectrum of typical bearing damage. To obtain a display that is independent of rotation frequency, the order was chosen as the abscissa. A rotational frequency signal is of the first order. Frequency lines are read in multiple of the order 3,58. This indicates damage to the outer ring of the bearing. The absence of first-order sidebands indicates a constant force direction, i.e. belt tension in this case, and no rotating imbalanced load.

    Graph A shows the component of the first-order bearing vibration (1), graph B shows the component of the second order (2).

    Condition without crack:

    The first-order bearing vibrations increase normally with speed because of the imbalance. The second-order bearing vibrations are very small.

    Condition with deep crack:

    Whereas the first-order bearing vibrations show behaviour similar to a shaft without a crack, there is a very sharp rise in the second-order vibrations in the medium speed range, which is a strong indication of a crack.

    acceleration, velocity, path

    PT 500.04 PC Based Evaluation Software & Instrumentation Kitgunt

    10 Hz

    35,8 Hz

    35,8-10 35,8+10 71,6 Hz

    0 20 40 60 80 100 120 Hz

    Tracking analysis shaft without crack

    Tracking analysis shaft with crack

    U

    U+T

    A

    3,58 7,16 10,74 14,32

    U

    U

    C

    A

    U

    T

    U+T

    Orders:

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 501Roller bearing faults

    1 foundation plate, 2 roller bearing, 3 loading device, 4 control unit, 5 mounting for rollerbearing to be studied, 6 bearing of the shaft, 7 transparent cover, 8 motor

    A) undamaged bearing, B) bearing with damage to outer race, C) bearing with damage to in-ner race, D) bearing with damage to a roller body, E) bearing with damage to roller body,outer and inner race, F) heavily worn bearing

    Envelope analysis of the bearing with damage on outer ring (B) at f=3000min-1

    Specification

    [1] investigation of the vibrations of roller bearings[2] roller bearing with damage to outer race[3] roller bearing with damage to inner race[4] roller bearing with damage to a roller body[5] roller bearings with combined damage[6] long-running roller bearings[7] new and undamaged roller bearing[8] drive motor with variable speed via frequency con-

    verter[9] radial loading of bearings via adjustable loading

    device[10] vibration isolation of the foundation plate using rub-

    ber elements[11] instruments: optical speed sensor, acceleration

    sensor to record vibration[12] software features: 2-channel oscilloscope; 2-chan-

    nel FFT analyser; envelope analysis; run-up curveand order analysis

    [13] GUNT software for vibration analysis under Win-dows

    Technical data

    Pendulum ball bearing of type NU204-E-TVP2 inside diameter: d=20mm outside diameter: D=47mm width: 14mm number of rollers: 12

    Drive motor speed: 1003000min-1 power: 370W

    Acceleration sensor frequency range: 110000Hz sensitivity: 100mV/g resonance frequency: 32kHz

    Optical speed sensor sampling width: 3150mm laser class II, 675nm

    LxWxH: 510x200x330mm (experimental unit)LxWxH: 420x400x180mm (control unit)Weight: approx. 25kg (total)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 control unit6 roller bearings1 set of accessories1 GUNT software CD + USB cable1 set of instructional material

    Order number 052.50100

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 501Roller bearing faults

    x

    Description

    assessment of bearing conditionby vibration analysis

    comparison of bearings with dif-ferent faults

    Vibration analysis is a key tool in estimat-ing the condition of a roller bearing. Theslow change in the vibration spectrumprovides indications of the remaining lifeof a bearing and can be used as a cri-terion for its replacement. The spectraldistribution can deliver accurate inform-ation on the type and location of thedamage.

    PT 501 contains six interchangeableroller bearings on which different faultscan be detected and explained. The radi-al load on the bearing is set within broadlimits using the loading device.

    An electric motor with variable speed viafrequency converter is used as drive. Anacceleration sensor with measuringamplifier serves to measure the vibra-tions at the bearing housing. The speedis measured with an optical sensor.

    The measured values are transmitteddirectly to a PC via USB. The softwarefor vibration analysis is included. Theanalysis software offers the followingfeatures: two-channel oscilloscope for in-vestigations in the time range; two-chan-nel spectrum analyser for investigationsin the frequency range; vibration meas-uring unit; envelope analysis for bump ef-fects and roller bearing damage.

    Learning objectives/experiments

    vibrational spectrum of the runningnoise of roller bearings

    familiarisation with the envelope ana-lysis

    influence of damage to outer race, in-ner race or roller body, on the spec-trum

    estimating service lives of roller bear-ings

    influence of the lubricant on the vibra-tion spectrum

    detection of faulty roller bearings use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017221220

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 501Roller bearing faults

    1 foundation plate, 2 roller bearing, 3 loading device, 4 control unit, 5 mounting for rollerbearing to be studied, 6 bearing of the shaft, 7 transparent cover, 8 motor

    A) undamaged bearing, B) bearing with damage to outer race, C) bearing with damage to in-ner race, D) bearing with damage to a roller body, E) bearing with damage to roller body,outer and inner race, F) heavily worn bearing

    Envelope analysis of the bearing with damage on outer ring (B) at f=3000min-1

    Specification

    [1] investigation of the vibrations of roller bearings[2] roller bearing with damage to outer race[3] roller bearing with damage to inner race[4] roller bearing with damage to a roller body[5] roller bearings with combined damage[6] long-running roller bearings[7] new and undamaged roller bearing[8] drive motor with variable speed via frequency con-

    verter[9] radial loading of bearings via adjustable loading

    device[10] vibration isolation of the foundation plate using rub-

    ber elements[11] instruments: optical speed sensor, acceleration

    sensor to record vibration[12] software features: 2-channel oscilloscope; 2-chan-

    nel FFT analyser; envelope analysis; run-up curveand order analysis

    [13] GUNT software for vibration analysis under Win-dows

    Technical data

    Pendulum ball bearing of type NU204-E-TVP2 inside diameter: d=20mm outside diameter: D=47mm width: 14mm number of rollers: 12

    Drive motor speed: 1003000min-1 power: 370W

    Acceleration sensor frequency range: 110000Hz sensitivity: 100mV/g resonance frequency: 32kHz

    Optical speed sensor sampling width: 3150mm laser class II, 675nm

    LxWxH: 510x200x330mm (experimental unit)LxWxH: 420x400x180mm (control unit)Weight: approx. 25kg (total)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 experimental unit1 control unit6 roller bearings1 set of accessories1 GUNT software CD + USB cable1 set of instructional material

    Order number 052.50100

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 501Roller bearing faults

    x

    Description

    assessment of bearing conditionby vibration analysis

    comparison of bearings with dif-ferent faults

    Vibration analysis is a key tool in estimat-ing the condition of a roller bearing. Theslow change in the vibration spectrumprovides indications of the remaining lifeof a bearing and can be used as a cri-terion for its replacement. The spectraldistribution can deliver accurate inform-ation on the type and location of thedamage.

    PT 501 contains six interchangeableroller bearings on which different faultscan be detected and explained. The radi-al load on the bearing is set within broadlimits using the loading device.

    An electric motor with variable speed viafrequency converter is used as drive. Anacceleration sensor with measuringamplifier serves to measure the vibra-tions at the bearing housing. The speedis measured with an optical sensor.

    The measured values are transmitteddirectly to a PC via USB. The softwarefor vibration analysis is included. Theanalysis software offers the followingfeatures: two-channel oscilloscope for in-vestigations in the time range; two-chan-nel spectrum analyser for investigationsin the frequency range; vibration meas-uring unit; envelope analysis for bump ef-fects and roller bearing damage.

    Learning objectives/experiments

    vibrational spectrum of the runningnoise of roller bearings

    familiarisation with the envelope ana-lysis

    influence of damage to outer race, in-ner race or roller body, on the spec-trum

    estimating service lives of roller bear-ings

    influence of the lubricant on the vibra-tion spectrum

    detection of faulty roller bearings use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017221220

  • PT 500 Machinery diagnostic system

    223222

    Machine dynamicsMachinery diagnosis gunt4

    The condition of a machine or its parts can be assessed by the nature and extent of the vibrations produced. To do this, vibra-tions are recorded and analysed by sensors and measuring instruments. The correct interpretation of the measuring sig-nals requires a good understanding of the acting mechanisms and a certain amount of experience.

    The PT 500 system from GUNT is a modular training system that addresses these complex issues in engineering education and studies them by experimentation. Using the PT 500 machin-ery-diagnostic teaching system, you can simulate, measure and evaluate vibration signals of typical malfunctions and dam-age. The interpretation of measuring signals can be practised extensively.

    Professional measuring technology allows the experience gained to be transfered into day-to-day operation.

    The core element of the training system is the PT 500 base unit. The components of the base unit, together with the PT 500.04 computerised vibration analyser, allow a series of experiments on the topic of machinery diagnostics. In addition, the PT 500.10 PT 500.19 accessory sets are available to simulate different, reproducible types of damage. In addition to pure measuring exer-cises on vibration measurement (measuring deflection, velocity and acceleration of the vibration in the time or frequency domain), it is possible to practice field balancing on rigid rotors and the alignment of shafts. Almost any topic in machinery diagnostics can be covered thanks to a wide range of accessories.

    The base unit contains a vibration-damped fixing plate, a speed-controlled drive motor with a tachometer, a shaft with two mass disks and two bearing units, a coupling and balancing weights.

    A complete summary of all options of the modular system can be found in our PT 500 brochure, which is available for download at www.gunt.de.

    Accessories that can be connected to the base unit

    PT 500.10 Elastic shaft kit

    PT 500.11 Crack detection in rotating shaft kit

    PT 500.12 Roller bearing faults kit

    PT 500.13 Couplings kit

    PT 500.14 Belt drive kit

    PT 500.15 Damage to gears kit

    PT 500.16 Crank mechanism kit

    PT 500.17 Cavitation in pumps kit

    PT 500.18 Vibrations in fans kit

    PT 500.19 Electromechanical vibrations kit

    Imbalance vibrations of a flexurally elastic shaft, resonance, critical speed, balancing

    Vibration behaviour of a cracked shaft, identification of the crack from the vibration signal

    Identification of bearing damage from the running noise, different pre-damaged roller bearings included

    Properties of different coupling types, influence of axial and radial runout and pitch error on vibration behaviour

    Vibrations on belt drives, resonance and critical speeds, influence of belt tension, radial runout and alignment

    Identification of gear damage from the vibration signal, influence of toothing type and lubrication

    Vibrations in crank mecha-nisms, free inertia forces, impacts and shocks due to bearing clearance and wear

    Noise and damage due to cavitation, conditions for cavitation

    Vibrations in fans, demonstration of vibration excitation by blade passage, influence of gyroscopic effect

    Interaction in an electro-magnetic-mechanical system, influence of load, air gap geome-try and electrical asymmetry

    Vibration measuring device

    Analysis on the PCMachinery x

  • PT 500 Machinery diagnostic system

    223222

    Machine dynamicsMachinery diagnosis gunt4

    The condition of a machine or its parts can be assessed by the nature and extent of the vibrations produced. To do this, vibra-tions are recorded and analysed by sensors and measuring instruments. The correct interpretation of the measuring sig-nals requires a good understanding of the acting mechanisms and a certain amount of experience.

    The PT 500 system from GUNT is a modular training system that addresses these complex issues in engineering education and studies them by experimentation. Using the PT 500 machin-ery-diagnostic teaching system, you can simulate, measure and evaluate vibration signals of typical malfunctions and dam-age. The interpretation of measuring signals can be practised extensively.

    Professional measuring technology allows the experience gained to be transfered into day-to-day operation.

    The core element of the training system is the PT 500 base unit. The components of the base unit, together with the PT 500.04 computerised vibration analyser, allow a series of experiments on the topic of machinery diagnostics. In addition, the PT 500.10 PT 500.19 accessory sets are available to simulate different, reproducible types of damage. In addition to pure measuring exer-cises on vibration measurement (measuring deflection, velocity and acceleration of the vibration in the time or frequency domain), it is possible to practice field balancing on rigid rotors and the alignment of shafts. Almost any topic in machinery diagnostics can be covered thanks to a wide range of accessories.

    The base unit contains a vibration-damped fixing plate, a speed-controlled drive motor with a tachometer, a shaft with two mass disks and two bearing units, a coupling and balancing weights.

    A complete summary of all options of the modular system can be found in our PT 500 brochure, which is available for download at www.gunt.de.

    Accessories that can be connected to the base unit

    PT 500.10 Elastic shaft kit

    PT 500.11 Crack detection in rotating shaft kit

    PT 500.12 Roller bearing faults kit

    PT 500.13 Couplings kit

    PT 500.14 Belt drive kit

    PT 500.15 Damage to gears kit

    PT 500.16 Crank mechanism kit

    PT 500.17 Cavitation in pumps kit

    PT 500.18 Vibrations in fans kit

    PT 500.19 Electromechanical vibrations kit

    Imbalance vibrations of a flexurally elastic shaft, resonance, critical speed, balancing

    Vibration behaviour of a cracked shaft, identification of the crack from the vibration signal

    Identification of bearing damage from the running noise, different pre-damaged roller bearings included

    Properties of different coupling types, influence of axial and radial runout and pitch error on vibration behaviour

    Vibrations on belt drives, resonance and critical speeds, influence of belt tension, radial runout and alignment

    Identification of gear damage from the vibration signal, influence of toothing type and lubrication

    Vibrations in crank mecha-nisms, free inertia forces, impacts and shocks due to bearing clearance and wear

    Noise and damage due to cavitation, conditions for cavitation

    Vibrations in fans, demonstration of vibration excitation by blade passage, influence of gyroscopic effect

    Interaction in an electro-magnetic-mechanical system, influence of load, air gap geome-try and electrical asymmetry

    Vibration measuring device

    Analysis on the PCMachinery x

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500Machinery diagnostic system, base unit

    1 base plate, 2 drive motor with adjustable carriage, 3 coupling, 4 bearing unit, 5 shaft,6 unbalanced flywheel, 7 transparent hood

    The illustration shows the components in the storage box.

    Screenshot of evaluation software: field balancing in two planes.

    Specification

    [1] base unit for machinery diagnostic training system[2] rigid base plate with workpiece holder slots[3] drive motor with variable speed via frequency con-

    verter[4] digital speed and power display[5] 2 shafts: 1x short, 1x long[6] 2 unbalanced flywheels with interchangeable bal-

    ance weights[7] bearing blocks, roller bearings, interchangeable[8] fixing holes for vibration measuring sensor[9] flexible claw coupling and ControlflexR coupling[10] motor can be aligned obliquely and transversally[11] transparent protective hood[12] stackable box for components

    Technical data

    Base plate LxW: 1100x800mm M8-slots, spacing 50mmAsynchronous motor with frequency converter drive power output: 0,37kW nominal speed: 2800min-1 speed range via frequency converter 1006000min-1 display and control unit with digital power and speed

    display2 shafts: D=20mm, length 300mm, 500mm2 unbalanced flywheels: D=150mm, each 1675g, withinterchangeable balance weights (bolts)2 bearing blocks with roller bearings 6004 (can be ex-changed)ControlflexR coupling: nominal torque: 15Nm

    LxWxH: 1100x800x500mm (base plate + hood)LxWxH: 475x415x195mm (control unit)LxWxH: 600x390x325mm (storage box)Weight: approx. 95kg (complete system)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 base plate with protective hood1 display and control unit1 asynchronous motor with frequency converter2 shafts2 unbalanced flywheels2 clutches2 bearing units1 holder plate2 clamp sets1 set of tools1 storage box with foam inlay1 set of instructional material

    Order number 052.50000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500Machinery diagnostic system, base unit

    The illustration shows the base system PT 500 ready for conducting experiments, together with the trolley PT 500.01.

    Description

    base unit for setting up wide ran-ging experiments in machinerydiagnostics using modular ac-cessory sets

    aluminium base plate with slotsfor quick, flexible assembly of dif-ferent experimental setups

    In order to avoid serious damage to ma-chines and to carry out maintenance ontime, the condition of the machine mustbe known. The state of a machine or ma-chine parts can generally be judged wellin terms of the type and size of its vibra-tions. The machinery diagnostic systemcan be used to simulate certain types ofdamage and investigate its effects onthe vibration spectrum.

    The PT 500 base unit permits vibrationmeasuring exercises (measurement ofvibration displacement, velocity and ac-celeration in the time/frequency range).Field balancing of rigid rotors and align-ment of shafts can also be practiced.

    The key components of the base unitare the mechanical elements (clutch,bearing blocks and shaft with rotors),the drive motor with variable speed via

    frequency converter and tachogenerat-or, and the display and control unit withdigital displays for power output andspeed.

    The motor base plate is mounted on acarriage, enabling the motor to bealigned. The large aluminium base platewith locating slots allows quick, flexibleand precise assembly of the systemcomponents. A transparent protectivecover provides the necessary safety dur-ing operation, and enables clear systemviewing during experiments. All parts areclearly laid out and well protected in astorage box.

    To measure and evaluate all experi-ments, the computerised vibration ana-lyser PT 500.04 is required. The ac-cessory sets PT 500.10 PT 500.19enable repeatable simulation of the dif-ferent types of damage.

    Use of the trolley PT 500.01 is recom-mended for flexible deployment of thetraining system.

    Learning objectives/experiments

    introduction to vibration measuringmethods on rotating machinery sys-tems fundamentals of measurement of

    shaft and bearing vibrations basic variables and parameters sensors and measuring devices influences of speed and shaft layout influence of sensor positioning

    field balancing of rigid shafts influence of alignment between motor

    and coupling understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016225224

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500Machinery diagnostic system, base unit

    1 base plate, 2 drive motor with adjustable carriage, 3 coupling, 4 bearing unit, 5 shaft,6 unbalanced flywheel, 7 transparent hood

    The illustration shows the components in the storage box.

    Screenshot of evaluation software: field balancing in two planes.

    Specification

    [1] base unit for machinery diagnostic training system[2] rigid base plate with workpiece holder slots[3] drive motor with variable speed via frequency con-

    verter[4] digital speed and power display[5] 2 shafts: 1x short, 1x long[6] 2 unbalanced flywheels with interchangeable bal-

    ance weights[7] bearing blocks, roller bearings, interchangeable[8] fixing holes for vibration measuring sensor[9] flexible claw coupling and ControlflexR coupling[10] motor can be aligned obliquely and transversally[11] transparent protective hood[12] stackable box for components

    Technical data

    Base plate LxW: 1100x800mm M8-slots, spacing 50mmAsynchronous motor with frequency converter drive power output: 0,37kW nominal speed: 2800min-1 speed range via frequency converter 1006000min-1 display and control unit with digital power and speed

    display2 shafts: D=20mm, length 300mm, 500mm2 unbalanced flywheels: D=150mm, each 1675g, withinterchangeable balance weights (bolts)2 bearing blocks with roller bearings 6004 (can be ex-changed)ControlflexR coupling: nominal torque: 15Nm

    LxWxH: 1100x800x500mm (base plate + hood)LxWxH: 475x415x195mm (control unit)LxWxH: 600x390x325mm (storage box)Weight: approx. 95kg (complete system)

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 base plate with protective hood1 display and control unit1 asynchronous motor with frequency converter2 shafts2 unbalanced flywheels2 clutches2 bearing units1 holder plate2 clamp sets1 set of tools1 storage box with foam inlay1 set of instructional material

    Order number 052.50000

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500Machinery diagnostic system, base unit

    The illustration shows the base system PT 500 ready for conducting experiments, together with the trolley PT 500.01.

    Description

    base unit for setting up wide ran-ging experiments in machinerydiagnostics using modular ac-cessory sets

    aluminium base plate with slotsfor quick, flexible assembly of dif-ferent experimental setups

    In order to avoid serious damage to ma-chines and to carry out maintenance ontime, the condition of the machine mustbe known. The state of a machine or ma-chine parts can generally be judged wellin terms of the type and size of its vibra-tions. The machinery diagnostic systemcan be used to simulate certain types ofdamage and investigate its effects onthe vibration spectrum.

    The PT 500 base unit permits vibrationmeasuring exercises (measurement ofvibration displacement, velocity and ac-celeration in the time/frequency range).Field balancing of rigid rotors and align-ment of shafts can also be practiced.

    The key components of the base unitare the mechanical elements (clutch,bearing blocks and shaft with rotors),the drive motor with variable speed via

    frequency converter and tachogenerat-or, and the display and control unit withdigital displays for power output andspeed.

    The motor base plate is mounted on acarriage, enabling the motor to bealigned. The large aluminium base platewith locating slots allows quick, flexibleand precise assembly of the systemcomponents. A transparent protectivecover provides the necessary safety dur-ing operation, and enables clear systemviewing during experiments. All parts areclearly laid out and well protected in astorage box.

    To measure and evaluate all experi-ments, the computerised vibration ana-lyser PT 500.04 is required. The ac-cessory sets PT 500.10 PT 500.19enable repeatable simulation of the dif-ferent types of damage.

    Use of the trolley PT 500.01 is recom-mended for flexible deployment of thetraining system.

    Learning objectives/experiments

    introduction to vibration measuringmethods on rotating machinery sys-tems fundamentals of measurement of

    shaft and bearing vibrations basic variables and parameters sensors and measuring devices influences of speed and shaft layout influence of sensor positioning

    field balancing of rigid shafts influence of alignment between motor

    and coupling understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016225224

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.01Laboratory trolley

    The illustration shows PT 500.01 together with the base plate with protective hood from the base unit PT 500.

    Description

    trolley for base unit 4 castors guarantee mobility

    This laboratory trolley together with thePT 500 base unit permits the construc-tion of a mobile experimental unit. Thetrolley features two shelves on whichmeasuring units and other accessoriescan be placed. The sturdy trolley struc-ture is manufactured from anodised alu-minium section. The shelves are madefrom anodised aluminium sheet.

    Specification

    [1] trolley for the modular machinerydiagnostic training system

    [2] blocan section, aluminium[3] 4 castors, with brake

    Technical data

    Top area, LxW: 1100x770mm

    LxWxH: 1100x770x820mmWeight: approx. 39kg

    Scope of delivery

    1 trolley, complete

    Order number 052.50001

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 01.2017

    Component is optional Component is required

    PT 500.41 Two displacement sensors additionally required

    PT 500-ClassificationExperimentation kits and required/optional components

    PT 500.10 Elastic shaft kit

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    PT 500.11 Crack detection in rotating shaft kit

    PT 500.12 Roller bearing faults kit

    PT 500.13 Couplings kit

    PT 500.14 Belt drive kit

    PT 500.15 Damage to gears kit

    PT 500.16 Crank mechanism kit

    PT 500.17 Cavitation in pumps kit

    PT 500.18 Vibrations in fans kit

    PT 500.19 Electromechanical vibrations kit

    Experiments

    Com

    pone

    nts

    227226

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.01Laboratory trolley

    The illustration shows PT 500.01 together with the base plate with protective hood from the base unit PT 500.

    Description

    trolley for base unit 4 castors guarantee mobility

    This laboratory trolley together with thePT 500 base unit permits the construc-tion of a mobile experimental unit. Thetrolley features two shelves on whichmeasuring units and other accessoriescan be placed. The sturdy trolley struc-ture is manufactured from anodised alu-minium section. The shelves are madefrom anodised aluminium sheet.

    Specification

    [1] trolley for the modular machinerydiagnostic training system

    [2] blocan section, aluminium[3] 4 castors, with brake

    Technical data

    Top area, LxW: 1100x770mm

    LxWxH: 1100x770x820mmWeight: approx. 39kg

    Scope of delivery

    1 trolley, complete

    Order number 052.50001

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/1 - 01.2017

    Component is optional Component is required

    PT 500.41 Two displacement sensors additionally required

    PT 500-ClassificationExperimentation kits and required/optional components

    PT 500.10 Elastic shaft kit

    PT

    50

    0.0

    5

    Bra

    ke &

    Loa

    d U

    nit

    PT

    50

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    PT 500.11 Crack detection in rotating shaft kit

    PT 500.12 Roller bearing faults kit

    PT 500.13 Couplings kit

    PT 500.14 Belt drive kit

    PT 500.15 Damage to gears kit

    PT 500.16 Crank mechanism kit

    PT 500.17 Cavitation in pumps kit

    PT 500.18 Vibrations in fans kit

    PT 500.19 Electromechanical vibrations kit

    Experiments

    Com

    pone

    nts

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  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.04Computerised vibration analyser

    1 vibrating machinery, 2 acceleration sensors, 3 shaft with reference sensor,4 USB box, 5 PC (PC not included), 6 measuring amplifier / filter

    Application of the sensors: acceleration sensor on the black bearing support, speed sensorwith holder

    The illustration shows all components of PT 500.04

    Specification

    [1] computerised vibration analyser for representationand evaluation of experiments with the PT 500Machinery diagnosis series

    [2] 2 acceleration sensors to record vibration displace-ment, vibration velocity and acceleration

    [3] optical sensor to record speed[4] 2-channel measuring amplifier with adjustable gain[5] software features: 2-channel oscilloscope; 2-chan-

    nel FFT analyser; envelope analysis; run-up curveand order analysis; 2-plane field balancing

    [6] 2 displacement sensors PT 500.41 can be connec-ted

    [7] suitable for general vibration measuring tasks[8] stackable storage system to house the compon-

    ents[9] GUNT software for data acquisition via USB under

    Windows

    Technical data

    Acceleration sensors frequency range: 110000Hz sensitivity: 100mV/g resonance frequency: 32kHzOptical speed sensor sampling width: 3150mm laser class II, 675nmMeasuring amplifier adjustable gain: x1, x10, x100 powered by 12VDC power supply unit LxWxH: 230x220x80mmUSB box 16x analogue in, 2x analogue out each 4x digital in/out

    LxWxH: 600x400x220mm (storage system)Weight: approx. 6kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    2 acceleration sensors1 speed sensor with holder1 amplifier1 CD with evaluation software1 USB box + data cable1 combination wrench, AF 131 storage system with foam inlay1 manual

    Order number 052.50004

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.04Computerised vibration analyser

    x

    Description

    versatile, powerful software forvibration analysis

    supports all machinery diagnosisexperiments of the PT 500 series

    suitable for field balancing of ro-tors in one and two planes

    The computerised vibration analyserwas developed specially to support ana-lysis of machinery diagnosis experimentsof the PT 500 series. The analyser canalso be used in many other vibration ex-periments (such as TM 150).

    The system comprises two accelerationsensors, a measuring amplifier with ad-justable gain, a USB box and the analysissoftware.

    The analysis software offers the follow-ing features: two-channel oscilloscopefor investigations in the time range; two-channel spectrum analyser for investiga-tions in the frequency range; vibrationmeasuring unit; envelope analysis forbump effects and roller bearing damage;travelling filter to record run-up curves;orbit display; and a balancing module forfield balancing of rigid rotors in one andtwo planes.

    The software permits various analyticalmethods to be applied to a vibration sig-nal and compared in terms of their effic-acy. This enables the advantages anddisadvantages of the various techniquesto be effectively discovered. The balan-cing process is presented step-by-step.

    The software features an intuitive userinterface, and is highly user-friendly. Anonline help function provides guidanceon the various functions. Measuring res-ults can be printed out.

    Cables, brackets and fixings are sup-plied.

    Learning objectives/experiments

    within the context of the experimentsin the complete PT 500 series, the fol-lowing learning can be covered: familiarisation with vibration signals correct application of FFT analysis measurement of speed, vibration dis-

    placement, vibration velocity and ac-celeration

    assessment of the vibration state ofa machine

    damage analysis of roller bearingsand gears by means of envelopespectra

    detection of cracks in shafts bymeans of run-up curves and orderanalysis

    measurement of imbalance vibra-tions and field balancing of rigid ro-tors in 1 and 2 planes

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017229228

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.04Computerised vibration analyser

    1 vibrating machinery, 2 acceleration sensors, 3 shaft with reference sensor,4 USB box, 5 PC (PC not included), 6 measuring amplifier / filter

    Application of the sensors: acceleration sensor on the black bearing support, speed sensorwith holder

    The illustration shows all components of PT 500.04

    Specification

    [1] computerised vibration analyser for representationand evaluation of experiments with the PT 500Machinery diagnosis series

    [2] 2 acceleration sensors to record vibration displace-ment, vibration velocity and acceleration

    [3] optical sensor to record speed[4] 2-channel measuring amplifier with adjustable gain[5] software features: 2-channel oscilloscope; 2-chan-

    nel FFT analyser; envelope analysis; run-up curveand order analysis; 2-plane field balancing

    [6] 2 displacement sensors PT 500.41 can be connec-ted

    [7] suitable for general vibration measuring tasks[8] stackable storage system to house the compon-

    ents[9] GUNT software for data acquisition via USB under

    Windows

    Technical data

    Acceleration sensors frequency range: 110000Hz sensitivity: 100mV/g resonance frequency: 32kHzOptical speed sensor sampling width: 3150mm laser class II, 675nmMeasuring amplifier adjustable gain: x1, x10, x100 powered by 12VDC power supply unit LxWxH: 230x220x80mmUSB box 16x analogue in, 2x analogue out each 4x digital in/out

    LxWxH: 600x400x220mm (storage system)Weight: approx. 6kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA,1 phase

    Scope of delivery

    2 acceleration sensors1 speed sensor with holder1 amplifier1 CD with evaluation software1 USB box + data cable1 combination wrench, AF 131 storage system with foam inlay1 manual

    Order number 052.50004

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.04Computerised vibration analyser

    x

    Description

    versatile, powerful software forvibration analysis

    supports all machinery diagnosisexperiments of the PT 500 series

    suitable for field balancing of ro-tors in one and two planes

    The computerised vibration analyserwas developed specially to support ana-lysis of machinery diagnosis experimentsof the PT 500 series. The analyser canalso be used in many other vibration ex-periments (such as TM 150).

    The system comprises two accelerationsensors, a measuring amplifier with ad-justable gain, a USB box and the analysissoftware.

    The analysis software offers the follow-ing features: two-channel oscilloscopefor investigations in the time range; two-channel spectrum analyser for investiga-tions in the frequency range; vibrationmeasuring unit; envelope analysis forbump effects and roller bearing damage;travelling filter to record run-up curves;orbit display; and a balancing module forfield balancing of rigid rotors in one andtwo planes.

    The software permits various analyticalmethods to be applied to a vibration sig-nal and compared in terms of their effic-acy. This enables the advantages anddisadvantages of the various techniquesto be effectively discovered. The balan-cing process is presented step-by-step.

    The software features an intuitive userinterface, and is highly user-friendly. Anonline help function provides guidanceon the various functions. Measuring res-ults can be printed out.

    Cables, brackets and fixings are sup-plied.

    Learning objectives/experiments

    within the context of the experimentsin the complete PT 500 series, the fol-lowing learning can be covered: familiarisation with vibration signals correct application of FFT analysis measurement of speed, vibration dis-

    placement, vibration velocity and ac-celeration

    assessment of the vibration state ofa machine

    damage analysis of roller bearingsand gears by means of envelopespectra

    detection of cracks in shafts bymeans of run-up curves and orderanalysis

    measurement of imbalance vibra-tions and field balancing of rigid ro-tors in 1 and 2 planes

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017229228

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.05Brake & load unit

    1 magnetic particle brake, 2 fan, 3 shaft for direct connection of brake, 4 belt drive, 5 shaftfor connection of brake via belt drive

    Principle of operation of a magnetic particle brake: 1 stator, 2 exciter coil, 3 gap withmagnetic particles, 4 rotor, 5 shaft; A current flows: magnetic particles connect rotor andstator, resulting in friction and braking, B current flow interrupted: magnetic particles arepressed against the stator by centrifugal force, and the rotor can rotate

    The illustration shows PT 500.05 together with PT 500, PT 500.01, PT 500.15 andPT 500.04.

    Specification

    [1] brake and load unit for the machinery diagnostictraining system

    [2] magnetic particle brake[3] display and control unit with exciter current display[4] potentiometer to adjust braking torque[5] integrated belt drive for second speed and torque

    range[6] temperature protection and fan overheating pro-

    tection[7] stackable storage system to house the compon-

    ents

    Technical data

    Continuous braking power: approx. 450W/3000min-1

    Transmission ratio between brake shafts: i=3

    Direct brake operation speed range: 2002000min-1 braking torque: 110Nm

    Operation via belt drive speed range: 6006000min-1 braking torque: 0,33,3Nm

    LxWxH: 460x410x200mm (display and control unit)LxWxH: 600x400x320mm (storage system)Weight: approx. 30kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 magnetic particle brake1 display and control unit1 storage system with foam inlay1 manual

    Order number 052.50005

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 12.2016

    guntPT 500.05Brake & load unit

    Description

    generation of a loading torque two speed and torque ranges vented magnetic particle brake

    with display and control unit

    Many vibration phenomena can only beachieved when the system is under load.The brake and load unit is used to gener-ate vibration as a function of torque, e.g.in toothed gearing mechanisms or elec-tric motors.

    It consists of a magnetic particle brakeand an electric display and control unit.The braking torque can be finely adjus-ted on the display and control unit. Theexciter current is applied as a measureof the braking torque and is indicated di-gitally on a display.

    An integrated belt drive, with a freeshaft, provides the brake with twotorque and speed ranges. The energy isconverted by the brake into heat and dis-charged to the ambient air by a fan.The brake can be quickly and preciselymounted on the slotted plate of thePT 500 base unit.

    PT 500.05 is used with the followingkits:PT 500.13 CouplingsPT 500.14 Belt drivePT 500.15 Damage to gearsPT 500.19 Electromechanical vibrations

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 12.2016231230

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.05Brake & load unit

    1 magnetic particle brake, 2 fan, 3 shaft for direct connection of brake, 4 belt drive, 5 shaftfor connection of brake via belt drive

    Principle of operation of a magnetic particle brake: 1 stator, 2 exciter coil, 3 gap withmagnetic particles, 4 rotor, 5 shaft; A current flows: magnetic particles connect rotor andstator, resulting in friction and braking, B current flow interrupted: magnetic particles arepressed against the stator by centrifugal force, and the rotor can rotate

    The illustration shows PT 500.05 together with PT 500, PT 500.01, PT 500.15 andPT 500.04.

    Specification

    [1] brake and load unit for the machinery diagnostictraining system

    [2] magnetic particle brake[3] display and control unit with exciter current display[4] potentiometer to adjust braking torque[5] integrated belt drive for second speed and torque

    range[6] temperature protection and fan overheating pro-

    tection[7] stackable storage system to house the compon-

    ents

    Technical data

    Continuous braking power: approx. 450W/3000min-1

    Transmission ratio between brake shafts: i=3

    Direct brake operation speed range: 2002000min-1 braking torque: 110Nm

    Operation via belt drive speed range: 6006000min-1 braking torque: 0,33,3Nm

    LxWxH: 460x410x200mm (display and control unit)LxWxH: 600x400x320mm (storage system)Weight: approx. 30kg

    Required for operation

    230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase

    Scope of delivery

    1 magnetic particle brake1 display and control unit1 storage system with foam inlay1 manual

    Order number 052.50005

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 12.2016

    guntPT 500.05Brake & load unit

    Description

    generation of a loading torque two speed and torque ranges vented magnetic particle brake

    with display and control unit

    Many vibration phenomena can only beachieved when the system is under load.The brake and load unit is used to gener-ate vibration as a function of torque, e.g.in toothed gearing mechanisms or elec-tric motors.

    It consists of a magnetic particle brakeand an electric display and control unit.The braking torque can be finely adjus-ted on the display and control unit. Theexciter current is applied as a measureof the braking torque and is indicated di-gitally on a display.

    An integrated belt drive, with a freeshaft, provides the brake with twotorque and speed ranges. The energy isconverted by the brake into heat and dis-charged to the ambient air by a fan.The brake can be quickly and preciselymounted on the slotted plate of thePT 500 base unit.

    PT 500.05 is used with the followingkits:PT 500.13 CouplingsPT 500.14 Belt drivePT 500.15 Damage to gearsPT 500.19 Electromechanical vibrations

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 12.2016231230

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.10Elastic shaft kit

    1 elastic shaft, 2 bearing, 3 safety bearing, 4 bores for displacement sensors, 5 bearingblock with pendulum ball bearing, 6 bores for acceleration sensors

    The illustration shows PT 500.10 together with PT 500, PT 500.01 and PT 500.04.

    Screenshot of evaluation softwareabove: vibration signals as a function of timebelow: orbit view for vibration on two planes

    Specification

    [1] investigation of flexural vibration of an elastic shaft[2] stainless steel elastic shaft[3] 2 bearing blocks with pendulum ball bearing[4] 1 bearing[5] bearing blocks and safety bearing with bores for

    sensor mounting[6] accessory set for machinery diagnostic training sys-

    tem PT 500[7] stackable storage system to house the compon-

    ents

    Technical data

    Elastic shaft min. diameter: D=10mm diameter at bearings: D=20mm length: 530mm nominal length between bearings: 450mm

    LxWxH: 600x400x120mm (storage system)Weight: approx. 6kg

    Scope of delivery

    1 elastic shaft2 bearing blocks1 safety bearing1 storage system with foam inlay1 manual

    Order number 052.50010

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.10Elastic shaft kit

    Description

    flexural vibration of the elasticshaft

    resonance and critical speed

    This accessory setup enables the re-sponse of an elastic rotor to unbalancedexcitation to be studied. The subcritical,supercritical and resonance runningstates can be demonstrated. A compar-ison of the orbits (path curves) in thesubcritical and supercritical range is ofparticular interest.

    The field balancing of elastic rotors is an-other area which can be investigated.The supplied pendulum ball bearings en-sure full mobility of the shaft. The safetybearing limits the amplitudes to harm-less values at speeds close to reson-ance.

    The accessory setup is mounted on thebase plate of the machinery diagnosticPT 500 base system.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 and two displacementsensors PT 500.41 are required. It in-cludes all the necessary sensors, ameasuring amplifier and analysis soft-ware to record the vibration phenom-ena.

    Learning objectives/experiments

    familiarisation with the terms criticalspeed and resonance

    influence of unbalanced excitation alignment of the elastic rotor influence of alignment errors understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er together with two displacement

    sensors PT 500.41 study of the orbit in the subcritical

    and supercritical range

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017233232

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.10Elastic shaft kit

    1 elastic shaft, 2 bearing, 3 safety bearing, 4 bores for displacement sensors, 5 bearingblock with pendulum ball bearing, 6 bores for acceleration sensors

    The illustration shows PT 500.10 together with PT 500, PT 500.01 and PT 500.04.

    Screenshot of evaluation softwareabove: vibration signals as a function of timebelow: orbit view for vibration on two planes

    Specification

    [1] investigation of flexural vibration of an elastic shaft[2] stainless steel elastic shaft[3] 2 bearing blocks with pendulum ball bearing[4] 1 bearing[5] bearing blocks and safety bearing with bores for

    sensor mounting[6] accessory set for machinery diagnostic training sys-

    tem PT 500[7] stackable storage system to house the compon-

    ents

    Technical data

    Elastic shaft min. diameter: D=10mm diameter at bearings: D=20mm length: 530mm nominal length between bearings: 450mm

    LxWxH: 600x400x120mm (storage system)Weight: approx. 6kg

    Scope of delivery

    1 elastic shaft2 bearing blocks1 safety bearing1 storage system with foam inlay1 manual

    Order number 052.50010

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.10Elastic shaft kit

    Description

    flexural vibration of the elasticshaft

    resonance and critical speed

    This accessory setup enables the re-sponse of an elastic rotor to unbalancedexcitation to be studied. The subcritical,supercritical and resonance runningstates can be demonstrated. A compar-ison of the orbits (path curves) in thesubcritical and supercritical range is ofparticular interest.

    The field balancing of elastic rotors is an-other area which can be investigated.The supplied pendulum ball bearings en-sure full mobility of the shaft. The safetybearing limits the amplitudes to harm-less values at speeds close to reson-ance.

    The accessory setup is mounted on thebase plate of the machinery diagnosticPT 500 base system.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 and two displacementsensors PT 500.41 are required. It in-cludes all the necessary sensors, ameasuring amplifier and analysis soft-ware to record the vibration phenom-ena.

    Learning objectives/experiments

    familiarisation with the terms criticalspeed and resonance

    influence of unbalanced excitation alignment of the elastic rotor influence of alignment errors understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er together with two displacement

    sensors PT 500.41 study of the orbit in the subcritical

    and supercritical range

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017233232

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.11Crack detection in rotating shaft kit

    1 flange with short shaft (loaded by belt drive), 2 bolt, 3 pick-up disk, 4 clamp set, 5 drivingshaft, 6 shaft with maximum crack (flange joint with 2 load-bearing bolts), 7 shaft with smallcrack (flange joint with 5 load-bearing bolts), 8 shaft with no crack (flange joint with 6 load-bearing bolts)

    The illustration shows PT 500.11 together with PT 500, PT 500.01, PT 500.14 andPT 500.04.

    Tracking analysis of a rotor with crack: significant rise in amplitude in 2 nd order (markedred)

    Specification

    [1] investigation of the vibration behaviour of a crackedshaft

    [2] crack adapter in flange form[3] simulation of the crack by opening bolt joints[4] 4 different sized cracks can be simulated[5] short shaft to simulate a protruding shaft end[6] long shaft to simulate an elastic rotor[7] PT 500.14 (belt drive) generates required bending

    torque[8] accessory setup for PT 500 machinery diagnostic

    training system[9] stackable storage system to house the compon-

    ents

    Technical data

    Flange diameter: D=90mm6 hexagon flange bolts M8x20

    Shafts diameter: D=20mm short shaft: L=85mm long shaft: L=200mm max. permissible bending torques short shaft for belt pulley: 15,9Nm long shaft for mass disk: 3,9Nm

    LxWxH: 600x400x120mm (storage system)Weight: approx. 3kg

    Scope of delivery

    1 pick-up disk1 long shaft1 short shaft1 centering arbor for alignment of shafts in ex-

    perimental setup6 bolts1 clamp set1 storage system with foam inlay1 manual

    Order number 052.50011

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.11Crack detection in rotating shaft kit

    2E

    Description

    vibration behaviour of shaft withradial crack

    identification of damage

    Cracks due to material fatigue are verydangerous for rotating machines. Earlydetection of any crack is therefore es-sential before permanent rupture andoften fatal consequences can occur. Thecrack influences the vibration behaviourof the shaft by changing its rigidity. Us-ing suitable analysis software, thischange can be registered and inspec-tion of the machine organised in goodtime.

    In the experiment, the crack is simulatedby an asymmetric flange joint. Variabletightening of the flange bolts produces atemporary gaping of the butt joint, whichclosely approximates to the behaviour ofa crack.

    The accessory setup includes two shaftsof different lengths: one short and onelong. The short shaft simulates a pro-truding shaft end, and is loaded with thePT 500.14 belt drive. The long shaft isused in conjunction with a safety bearingfrom PT 500.10 and an inertia diskfrom the base unit to investigate the ef-fects of a crack in a shaft on the elasticrotor.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    change in characteristic vibration be-haviour (natural frequency, resonancespeed, amplitude and phase of vibra-tions) due to a crack

    crack identification from the change invibration spectrum

    detection of cracks in rotating shaftsat the protruding shaft end

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    in conjunction with a safety bearing(e.g. from PT 500.10 elastic shaftaccessory setup) detection of cracks in rotating shafts

    (the elastic rotor)

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016235234

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.11Crack detection in rotating shaft kit

    1 flange with short shaft (loaded by belt drive), 2 bolt, 3 pick-up disk, 4 clamp set, 5 drivingshaft, 6 shaft with maximum crack (flange joint with 2 load-bearing bolts), 7 shaft with smallcrack (flange joint with 5 load-bearing bolts), 8 shaft with no crack (flange joint with 6 load-bearing bolts)

    The illustration shows PT 500.11 together with PT 500, PT 500.01, PT 500.14 andPT 500.04.

    Tracking analysis of a rotor with crack: significant rise in amplitude in 2 nd order (markedred)

    Specification

    [1] investigation of the vibration behaviour of a crackedshaft

    [2] crack adapter in flange form[3] simulation of the crack by opening bolt joints[4] 4 different sized cracks can be simulated[5] short shaft to simulate a protruding shaft end[6] long shaft to simulate an elastic rotor[7] PT 500.14 (belt drive) generates required bending

    torque[8] accessory setup for PT 500 machinery diagnostic

    training system[9] stackable storage system to house the compon-

    ents

    Technical data

    Flange diameter: D=90mm6 hexagon flange bolts M8x20

    Shafts diameter: D=20mm short shaft: L=85mm long shaft: L=200mm max. permissible bending torques short shaft for belt pulley: 15,9Nm long shaft for mass disk: 3,9Nm

    LxWxH: 600x400x120mm (storage system)Weight: approx. 3kg

    Scope of delivery

    1 pick-up disk1 long shaft1 short shaft1 centering arbor for alignment of shafts in ex-

    perimental setup6 bolts1 clamp set1 storage system with foam inlay1 manual

    Order number 052.50011

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.11Crack detection in rotating shaft kit

    2E

    Description

    vibration behaviour of shaft withradial crack

    identification of damage

    Cracks due to material fatigue are verydangerous for rotating machines. Earlydetection of any crack is therefore es-sential before permanent rupture andoften fatal consequences can occur. Thecrack influences the vibration behaviourof the shaft by changing its rigidity. Us-ing suitable analysis software, thischange can be registered and inspec-tion of the machine organised in goodtime.

    In the experiment, the crack is simulatedby an asymmetric flange joint. Variabletightening of the flange bolts produces atemporary gaping of the butt joint, whichclosely approximates to the behaviour ofa crack.

    The accessory setup includes two shaftsof different lengths: one short and onelong. The short shaft simulates a pro-truding shaft end, and is loaded with thePT 500.14 belt drive. The long shaft isused in conjunction with a safety bearingfrom PT 500.10 and an inertia diskfrom the base unit to investigate the ef-fects of a crack in a shaft on the elasticrotor.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    change in characteristic vibration be-haviour (natural frequency, resonancespeed, amplitude and phase of vibra-tions) due to a crack

    crack identification from the change invibration spectrum

    detection of cracks in rotating shaftsat the protruding shaft end

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    in conjunction with a safety bearing(e.g. from PT 500.10 elastic shaftaccessory setup) detection of cracks in rotating shafts

    (the elastic rotor)

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016235234

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.12Roller bearing faults kit

    A) undamaged bearing, B) bearing with damage to outer race, C) bearing with damage to in-ner race, D) bearing with damage to a roller body, E) bearing with damage to roller body,outer and inner race, F) heavily worn bearing

    The illustration shows PT 500.12 together with PT 500, PT 500.01, PT 500.14 andPT 500.04.

    Envelope analysis of the bearing with damage on outer ring (B) atf=1800min-1, damage frequency f1=3,58f, harmonic waves f2 to f7

    Specification

    [1] investigation of the vibrations of roller bearings[2] roller bearing with damage to outer race[3] roller bearing with damage to inner race[4] roller bearing with damage to a roller body[5] roller bearing with combined damage[6] long-running roller bearing[7] new and undamaged roller bearing[8] radial loading of bearings with PT 500.14 (belt

    drive)[9] accessory set for PT 500 machinery diagnostic

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Pendulum ball bearing of type NU204-E-TVP2 inside diameter: d=20mm outside diameter: D=47mm width: 14mm number of rollers: 12

    LxWxH: 600x400x120mm (storage system)Weight: approx. 4kg

    Scope of delivery

    6 roller bearings1 bearing block2 circlips1 circlip pliers1 storage system with foam inlay1 manual

    Order number 052.50012

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.12Roller bearing faults kit

    2E

    Description

    assessment of bearing conditionby vibration analysis

    comparison of bearings with dif-ferent faults

    Vibration analysis is a key tool in estimat-ing the condition of a roller bearing. Theslow change in the vibration spectrumprovides indications of the remaining lifeof a bearing and can be used as a cri-terion for its replacement. The spectraldistribution can deliver accurate inform-ation on the type and location of thedamage.

    This accessory setup contains six rollerbearings on which different faults can bedetected and explained. The radial loadon the bearing can be set within broadlimits using the belt drive accessory setPT 500.14 (setting of belt tension; fixedload).

    The accessory setup is mounted on thebase plate of the machinery diagnosisbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    vibrational spectrum of the runningnoise of roller bearings

    familiarisation with the envelope ana-lysis

    influence of damage to outer race, in-ner race or roller body, on the spec-trum

    estimating service lives of roller bear-ings

    influence of the lubricant on the vibra-tion spectrum

    detection of faulty roller bearings understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016237236

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.12Roller bearing faults kit

    A) undamaged bearing, B) bearing with damage to outer race, C) bearing with damage to in-ner race, D) bearing with damage to a roller body, E) bearing with damage to roller body,outer and inner race, F) heavily worn bearing

    The illustration shows PT 500.12 together with PT 500, PT 500.01, PT 500.14 andPT 500.04.

    Envelope analysis of the bearing with damage on outer ring (B) atf=1800min-1, damage frequency f1=3,58f, harmonic waves f2 to f7

    Specification

    [1] investigation of the vibrations of roller bearings[2] roller bearing with damage to outer race[3] roller bearing with damage to inner race[4] roller bearing with damage to a roller body[5] roller bearing with combined damage[6] long-running roller bearing[7] new and undamaged roller bearing[8] radial loading of bearings with PT 500.14 (belt

    drive)[9] accessory set for PT 500 machinery diagnostic

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Pendulum ball bearing of type NU204-E-TVP2 inside diameter: d=20mm outside diameter: D=47mm width: 14mm number of rollers: 12

    LxWxH: 600x400x120mm (storage system)Weight: approx. 4kg

    Scope of delivery

    6 roller bearings1 bearing block2 circlips1 circlip pliers1 storage system with foam inlay1 manual

    Order number 052.50012

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.12Roller bearing faults kit

    2E

    Description

    assessment of bearing conditionby vibration analysis

    comparison of bearings with dif-ferent faults

    Vibration analysis is a key tool in estimat-ing the condition of a roller bearing. Theslow change in the vibration spectrumprovides indications of the remaining lifeof a bearing and can be used as a cri-terion for its replacement. The spectraldistribution can deliver accurate inform-ation on the type and location of thedamage.

    This accessory setup contains six rollerbearings on which different faults can bedetected and explained. The radial loadon the bearing can be set within broadlimits using the belt drive accessory setPT 500.14 (setting of belt tension; fixedload).

    The accessory setup is mounted on thebase plate of the machinery diagnosisbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    vibrational spectrum of the runningnoise of roller bearings

    familiarisation with the envelope ana-lysis

    influence of damage to outer race, in-ner race or roller body, on the spec-trum

    estimating service lives of roller bear-ings

    influence of the lubricant on the vibra-tion spectrum

    detection of faulty roller bearings understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016237236

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.13Couplings kit

    1 pin coupling, 2 flange coupling, 3 curved teeth coupling, 4 claw coupling with coupling star(both from PT 500), 5 coupling stars, 6 bearing block with elastic bearing

    Flange coupling halves: A without fault, B eccentricity, C wobble

    The illustration shows PT 500.13 together with PT 500, PT 500.01, PT 500.05 andPT 500.04.

    Specification

    [1] investigation of the vibration behaviour of variouscoupling types with and without faults

    [2] curved teeth coupling[3] 3 different coupling stars for the elastic claw coup-

    ling of the base unit PT 500[4] flange coupling with no fault[5] flange coupling with radial run-out[6] flange coupling with axial run-out[7] pin coupling with and without pitch fault[8] experimental setup can be used with brake and

    load unit PT 500.05[9] accessory set for PT 500 machinery diagnosis

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Pin coupling 1x centric pin 1x eccentric pin eccentricity of pin: 1mm

    max. pitch fault: 180 1,909

    Coupling stars for claw coupling 98 Shore A (red) 92 Shore A (yellow) 64 Shore D (green) 80 Shore A (blue, included in PT 500)

    Flange coupling radial run-out (centre offset): 0,2mm axial run-out: 0,4 0,1mm

    LxWxH: 400x300x170mm (storage system)Weight: approx. 6kg

    Scope of delivery

    1 curved teeth coupling1 flange coupling with no fault1 flange coupling with radial run-out1 flange coupling with axial run-out1 pin coupling with adjustable pitch fault3 coupling stars1 bearing block1 set of tools1 storage system with foam inlay1 manual

    Order number 052.50013

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.13Couplings kit

    The illustration shows PT 500.13 together with the claw coupling of PT 500.

    Description

    vibration analysis of couplings radial run-out, axial run-out and

    pitch fault properties of different coupling

    types: pin coupling, curved teethcoupling, flange coupling, clawcoupling

    Rotating machine elements are inter-connected by way of couplings. A coup-ling exhibiting production or assemblyfaults generates machine vibrationswhich can be analysed to give an indica-tion of specific faults or damage.

    The PT 500.13 accessory set can beused to simulate various faults and in-vestigate their effects on vibration beha-viour. The properties of various couplingtypes can also be compared. The curvedteeth, pin, flange and claw coupling typesare investigated. The couplings are in-stalled between the motor and the shaft.The PT 500.05 load unit will also be re-quired to investigate the behaviour ofthe couplings under load.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration ana-lyser PT 500.04 is required. It includesall the necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    effects of alignment errors on differentcoupling types pin coupling with offset claw coupling with offset

    effects of production faults such as ra-dial run-out, axial run-out and pitchfault, on the running of the machine flange coupling with no fault flange coupling with radial run-out flange coupling with axial run-out pin coupling with no fault pin coupling with pitch fault

    identification of coupling faults fromthe vibration signal

    load dependency of running behaviour influence of gear rim hardness on claw

    couplings comparison of curved teeth, pin, flange

    and claw couplings understanding and interpreting fre-

    quency spectra use of a computerised vibration ana-

    lyser

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016239238

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.13Couplings kit

    1 pin coupling, 2 flange coupling, 3 curved teeth coupling, 4 claw coupling with coupling star(both from PT 500), 5 coupling stars, 6 bearing block with elastic bearing

    Flange coupling halves: A without fault, B eccentricity, C wobble

    The illustration shows PT 500.13 together with PT 500, PT 500.01, PT 500.05 andPT 500.04.

    Specification

    [1] investigation of the vibration behaviour of variouscoupling types with and without faults

    [2] curved teeth coupling[3] 3 different coupling stars for the elastic claw coup-

    ling of the base unit PT 500[4] flange coupling with no fault[5] flange coupling with radial run-out[6] flange coupling with axial run-out[7] pin coupling with and without pitch fault[8] experimental setup can be used with brake and

    load unit PT 500.05[9] accessory set for PT 500 machinery diagnosis

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Pin coupling 1x centric pin 1x eccentric pin eccentricity of pin: 1mm

    max. pitch fault: 180 1,909

    Coupling stars for claw coupling 98 Shore A (red) 92 Shore A (yellow) 64 Shore D (green) 80 Shore A (blue, included in PT 500)

    Flange coupling radial run-out (centre offset): 0,2mm axial run-out: 0,4 0,1mm

    LxWxH: 400x300x170mm (storage system)Weight: approx. 6kg

    Scope of delivery

    1 curved teeth coupling1 flange coupling with no fault1 flange coupling with radial run-out1 flange coupling with axial run-out1 pin coupling with adjustable pitch fault3 coupling stars1 bearing block1 set of tools1 storage system with foam inlay1 manual

    Order number 052.50013

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.13Couplings kit

    The illustration shows PT 500.13 together with the claw coupling of PT 500.

    Description

    vibration analysis of couplings radial run-out, axial run-out and

    pitch fault properties of different coupling

    types: pin coupling, curved teethcoupling, flange coupling, clawcoupling

    Rotating machine elements are inter-connected by way of couplings. A coup-ling exhibiting production or assemblyfaults generates machine vibrationswhich can be analysed to give an indica-tion of specific faults or damage.

    The PT 500.13 accessory set can beused to simulate various faults and in-vestigate their effects on vibration beha-viour. The properties of various couplingtypes can also be compared. The curvedteeth, pin, flange and claw coupling typesare investigated. The couplings are in-stalled between the motor and the shaft.The PT 500.05 load unit will also be re-quired to investigate the behaviour ofthe couplings under load.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration ana-lyser PT 500.04 is required. It includesall the necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    effects of alignment errors on differentcoupling types pin coupling with offset claw coupling with offset

    effects of production faults such as ra-dial run-out, axial run-out and pitchfault, on the running of the machine flange coupling with no fault flange coupling with radial run-out flange coupling with axial run-out pin coupling with no fault pin coupling with pitch fault

    identification of coupling faults fromthe vibration signal

    load dependency of running behaviour influence of gear rim hardness on claw

    couplings comparison of curved teeth, pin, flange

    and claw couplings understanding and interpreting fre-

    quency spectra use of a computerised vibration ana-

    lyser

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016239238

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.14Belt drive kit

    1 belt, 2 small belt pulley (driving), 3 small eccentric V-belt pulley, 4 clamp set, 5 belt ten-sioner, 6 tensioning rollers, 7 adjustment of V-belt tension, 8 large V-belt pulley, 9 bearingblock

    The illustration shows PT 500.14 together with PT 500.05.

    Frequency spectrum on the belt drivebelt frequency fr with harmonic waves 2fr, 4fr, 6fr. drive speed n, n/2

    Specification

    [1] investigation of the vibrations of belt drives[2] dual belt drive with V-belt[3] belt drive can be operated with one belt[4] individually-adjustable tensioning rollers[5] belt drive with radial run-out[6] damaged V-belt[7] belt pre-tension measuring unit 0150N[8] suitable for applying transverse loads on other sys-

    tems within the accessory sets of the PT 500series

    [9] brake and load unit PT 500.05 required for experi-ments on the belt drive

    [10] accessory set for PT 500 machinery diagnostictraining system

    [11] stackable storage system to house the compon-ents

    Technical data

    V-belt pulleys large: D=125mm small: D=63mm small, eccentric: D=63mm

    Axle centres: 300mm

    V-belt SPZ, approx. 10mm wide belt length: 912mm

    LxWxH: 600x400x170mm (storage system)Weight: approx. 6kg

    Scope of delivery

    3 V-belts3 belt pulleys1 tensioning roller set1 belt pre-tension measuring unit1 storage system with foam inlay1 manual

    Order number 052.50014

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.14Belt drive kit

    Description

    vibrations in belt drives resonance and critical speed

    When properly designed, manufactured,and correctly set; belt drives are low-maintenance, low-noise, long-life driveunits. It is important that the belt shouldnot vibrate and/or slip.

    The PT 500.14 accessory setup can beused to investigate conditions thatcause vibration or slip. The effect of dis-parate elongation on multiple belt drivescan be demonstrated by means of indi-vidually-adjustable tensioning rollers. Thebelt drive is a dual belt drive with a belttensioner. It can, however, also be oper-ated with only one belt. An eccentrically-bored small belt pulley and a damaged V-belt enhance the range of possible ex-periments.

    The brake and PT 500.05 load unit is re-quired to conduct the experiment. Theaccessory set PT 500.14 can also beused to apply transverse loads in otherexperiments.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    influence of belt tension on vibrationbehaviour

    influence of speed on vibration beha-viour

    influence of pulleys running untrue, andoff-track running

    power split across multiple belt drive influence of slip on vibration running

    spectrum comparison between fault-free and

    damaged belts understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017241240

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.14Belt drive kit

    1 belt, 2 small belt pulley (driving), 3 small eccentric V-belt pulley, 4 clamp set, 5 belt ten-sioner, 6 tensioning rollers, 7 adjustment of V-belt tension, 8 large V-belt pulley, 9 bearingblock

    The illustration shows PT 500.14 together with PT 500.05.

    Frequency spectrum on the belt drivebelt frequency fr with harmonic waves 2fr, 4fr, 6fr. drive speed n, n/2

    Specification

    [1] investigation of the vibrations of belt drives[2] dual belt drive with V-belt[3] belt drive can be operated with one belt[4] individually-adjustable tensioning rollers[5] belt drive with radial run-out[6] damaged V-belt[7] belt pre-tension measuring unit 0150N[8] suitable for applying transverse loads on other sys-

    tems within the accessory sets of the PT 500series

    [9] brake and load unit PT 500.05 required for experi-ments on the belt drive

    [10] accessory set for PT 500 machinery diagnostictraining system

    [11] stackable storage system to house the compon-ents

    Technical data

    V-belt pulleys large: D=125mm small: D=63mm small, eccentric: D=63mm

    Axle centres: 300mm

    V-belt SPZ, approx. 10mm wide belt length: 912mm

    LxWxH: 600x400x170mm (storage system)Weight: approx. 6kg

    Scope of delivery

    3 V-belts3 belt pulleys1 tensioning roller set1 belt pre-tension measuring unit1 storage system with foam inlay1 manual

    Order number 052.50014

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/2 - 01.2017

    guntPT 500.14Belt drive kit

    Description

    vibrations in belt drives resonance and critical speed

    When properly designed, manufactured,and correctly set; belt drives are low-maintenance, low-noise, long-life driveunits. It is important that the belt shouldnot vibrate and/or slip.

    The PT 500.14 accessory setup can beused to investigate conditions thatcause vibration or slip. The effect of dis-parate elongation on multiple belt drivescan be demonstrated by means of indi-vidually-adjustable tensioning rollers. Thebelt drive is a dual belt drive with a belttensioner. It can, however, also be oper-ated with only one belt. An eccentrically-bored small belt pulley and a damaged V-belt enhance the range of possible ex-periments.

    The brake and PT 500.05 load unit is re-quired to conduct the experiment. Theaccessory set PT 500.14 can also beused to apply transverse loads in otherexperiments.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    influence of belt tension on vibrationbehaviour

    influence of speed on vibration beha-viour

    influence of pulleys running untrue, andoff-track running

    power split across multiple belt drive influence of slip on vibration running

    spectrum comparison between fault-free and

    damaged belts understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/2 - 01.2017241240

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.15Damage to gears kit

    1 shaft end, 2 bearing cover with shaft gland, 3 bearing cover with centre distance adjust-ment facility, 4 tapped hole for vibration sensor, 5 transparent gear unit cover; a helicalgear set, b spur toothed gear set, 4 damaged gear sets; F fault

    The illustration shows PT 500.15 together with PT 500, PT 500.01, PT 500.05 andPT 500.04.

    Spectrum of a spur toothed gear at 1800min-1: tooth gearing frequency 752Hz

    Specification

    [1] investigation of the vibration behaviour of gears[2] two-shaft gear unit[3] 2 damaged and 2 undamaged gear sets[4] spur toothed and helical gearing[5] housing with sensor holes[6] transparent housing cover[7] gear can be lubricated with grease or oil[8] loading of experimental setup with brake and load

    unit PT 500.05[9] accessory set for PT 500 machinery diagnostic

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Transmission ratio i: 1:3Centre distance adjustableReference profile to DIN 867

    Spur toothed gear sets gear wheel: 75 teeth on each, m=2mm pinion: 25 teeth on each, m=2mm

    Helical gear sets gear wheel: 75 teeth on each, m=2mm pinion: 25 teeth on each, m=2mm helix angle: 10

    LxWxH: 600x400x320mm (storage system)Weight: approx. 25kg

    Scope of delivery

    1 gearbox1 transparent housing cover1 housing cover with sensor holes4 gear wheels4 pinions1 motor oil SAE 10W 40, 1,5L1 storage system with foam inlay1 manual

    Order number 052.50015

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.15Damage to gears kit

    2E

    Description

    vibration analysis of tooth dam-age

    fault localisation on gears

    The PT 500.15 accessory setup is usedto simulate typical damage to gears andstudy its effects on vibration behaviour.Various gear sets with tooth damageare supplied for this purpose. Undam-aged gear sets are provided for compar-ative purposes. The difference betweenspur toothed and helical gearing canalso be demonstrated. The influence ofthe centre distance and backlash can bestudied using adjustable bearing plates.The type of lubrication has a significantinfluence on the vibration signal, sogrease or gear oil can be used for lubric-ation.

    The housing, with holes to accommod-ate sensors, is used for vibration experi-ments. The transparent housing coverallows the gear to be observed in opera-tion without taking vibration measure-ments.

    The PT 500.05 brake and load unit willbe required to subject the gear unit toload.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    identification of gear damage from vi-bration behaviour

    influence of gearing type spur toothed helical

    localisation of damage influence of lubrication influence of centre distance and of

    backlash understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016243242

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.15Damage to gears kit

    1 shaft end, 2 bearing cover with shaft gland, 3 bearing cover with centre distance adjust-ment facility, 4 tapped hole for vibration sensor, 5 transparent gear unit cover; a helicalgear set, b spur toothed gear set, 4 damaged gear sets; F fault

    The illustration shows PT 500.15 together with PT 500, PT 500.01, PT 500.05 andPT 500.04.

    Spectrum of a spur toothed gear at 1800min-1: tooth gearing frequency 752Hz

    Specification

    [1] investigation of the vibration behaviour of gears[2] two-shaft gear unit[3] 2 damaged and 2 undamaged gear sets[4] spur toothed and helical gearing[5] housing with sensor holes[6] transparent housing cover[7] gear can be lubricated with grease or oil[8] loading of experimental setup with brake and load

    unit PT 500.05[9] accessory set for PT 500 machinery diagnostic

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Transmission ratio i: 1:3Centre distance adjustableReference profile to DIN 867

    Spur toothed gear sets gear wheel: 75 teeth on each, m=2mm pinion: 25 teeth on each, m=2mm

    Helical gear sets gear wheel: 75 teeth on each, m=2mm pinion: 25 teeth on each, m=2mm helix angle: 10

    LxWxH: 600x400x320mm (storage system)Weight: approx. 25kg

    Scope of delivery

    1 gearbox1 transparent housing cover1 housing cover with sensor holes4 gear wheels4 pinions1 motor oil SAE 10W 40, 1,5L1 storage system with foam inlay1 manual

    Order number 052.50015

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.15Damage to gears kit

    2E

    Description

    vibration analysis of tooth dam-age

    fault localisation on gears

    The PT 500.15 accessory setup is usedto simulate typical damage to gears andstudy its effects on vibration behaviour.Various gear sets with tooth damageare supplied for this purpose. Undam-aged gear sets are provided for compar-ative purposes. The difference betweenspur toothed and helical gearing canalso be demonstrated. The influence ofthe centre distance and backlash can bestudied using adjustable bearing plates.The type of lubrication has a significantinfluence on the vibration signal, sogrease or gear oil can be used for lubric-ation.

    The housing, with holes to accommod-ate sensors, is used for vibration experi-ments. The transparent housing coverallows the gear to be observed in opera-tion without taking vibration measure-ments.

    The PT 500.05 brake and load unit willbe required to subject the gear unit toload.

    The accessory setup is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    identification of gear damage from vi-bration behaviour

    influence of gearing type spur toothed helical

    localisation of damage influence of lubrication influence of centre distance and of

    backlash understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016243242

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.16Crank mechanism kit

    1 connecting rod, 2 crosshead, 3 adjustment of bearing clearance, 4 pressure spring,5 bearing block with journal bearing, 6 piston rod, 7 crank disk, 8 articulated head, 9 bal-ance mass

    The illustration shows PT 500.16 together with PT 500, PT 500.01 and PT 500.04.

    Envelope analysis on crank drive with clearance at 600min-1.Dominant is the 2 nd order 2n with harmonic waves 4n, 6n, 8n etc.

    Specification

    [1] investigation of the vibrations of crank drives[2] crank drive with adjustable stroke[3] interchangeable bearing bushes permit simulation

    of bearing clearance[4] springs simulate gas forces[5] can be used together with gear damage accessory

    set PT 500.15[6] belt drive PT 500.14 or gear unit PT 500.15 re-

    quired for experiment with gas forces[7] accessory set for PT 500 machinery diagnostic

    training system[8] stackable storage system to house the compon-

    ents

    Technical data

    Stroke: 50 75 100mm

    Balance mass total 490g, rated for operation with 50mm stroke

    Bearing clearance: 01mm

    Pressure spring relaxed length: 170mm spring stiffness: R=0,55N/mm

    LxWxH: 600x400x170mm (storage system)Weight: approx. 8kg

    Scope of delivery

    1 crank drive2 springs2 balance masses1 set of tools1 storage system with foam inlay1 manual

    Order number 052.50016

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.16Crank mechanism kit

    Description

    vibrations of crank drives bearing clearance or slack in os-

    cillating machine components

    Crank drives are frequently used in com-pressors and pumps. They cause vibra-tion due to the oscillating masses andforces. Under the alternating stress inthe drive mechanism, bearing clearance,for example, can generate shock im-pacts with high-frequency exciter spec-tra. In addition, free mass forces gener-ate harmonic vibrations due to their non-linear kinematics.

    The PT 500.16 accessory set enablesthe stroke, mass balance and bearingclearance on the crosshead to be adjus-ted. The speed is adjusted using thebase unit PT 500. Gas forces such asoccur in compressors or combustionengines can be simulated using springs.Experiments with gas forces requirehigher torques which are attained by re-ducing the speed of the drive motorfrom the base unit PT 500. This reduc-tion is achieved either with thePT 500.14 belt drive or the PT 500.15gear unit.

    The transmission of alternating torquein toothed gearing mechanisms can beinvestigated together with accessory setPT 500.15 (for investigating damage togears).

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    experimental modal analysis of mech-anical systems

    familiarisation with the envelope ana-lysis

    influence of bearing clearance andshock impact

    inconsistent torque characteristic wear measurement on piston rods understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er in conjunction with PT 500.15 transmission of alternating torque in

    toothed gearing mechanisms in conjunction with PT 500.14 or

    PT500.15 influence of gas forces on the vibra-

    tion spectrum

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016245244

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.16Crank mechanism kit

    1 connecting rod, 2 crosshead, 3 adjustment of bearing clearance, 4 pressure spring,5 bearing block with journal bearing, 6 piston rod, 7 crank disk, 8 articulated head, 9 bal-ance mass

    The illustration shows PT 500.16 together with PT 500, PT 500.01 and PT 500.04.

    Envelope analysis on crank drive with clearance at 600min-1.Dominant is the 2 nd order 2n with harmonic waves 4n, 6n, 8n etc.

    Specification

    [1] investigation of the vibrations of crank drives[2] crank drive with adjustable stroke[3] interchangeable bearing bushes permit simulation

    of bearing clearance[4] springs simulate gas forces[5] can be used together with gear damage accessory

    set PT 500.15[6] belt drive PT 500.14 or gear unit PT 500.15 re-

    quired for experiment with gas forces[7] accessory set for PT 500 machinery diagnostic

    training system[8] stackable storage system to house the compon-

    ents

    Technical data

    Stroke: 50 75 100mm

    Balance mass total 490g, rated for operation with 50mm stroke

    Bearing clearance: 01mm

    Pressure spring relaxed length: 170mm spring stiffness: R=0,55N/mm

    LxWxH: 600x400x170mm (storage system)Weight: approx. 8kg

    Scope of delivery

    1 crank drive2 springs2 balance masses1 set of tools1 storage system with foam inlay1 manual

    Order number 052.50016

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.16Crank mechanism kit

    Description

    vibrations of crank drives bearing clearance or slack in os-

    cillating machine components

    Crank drives are frequently used in com-pressors and pumps. They cause vibra-tion due to the oscillating masses andforces. Under the alternating stress inthe drive mechanism, bearing clearance,for example, can generate shock im-pacts with high-frequency exciter spec-tra. In addition, free mass forces gener-ate harmonic vibrations due to their non-linear kinematics.

    The PT 500.16 accessory set enablesthe stroke, mass balance and bearingclearance on the crosshead to be adjus-ted. The speed is adjusted using thebase unit PT 500. Gas forces such asoccur in compressors or combustionengines can be simulated using springs.Experiments with gas forces requirehigher torques which are attained by re-ducing the speed of the drive motorfrom the base unit PT 500. This reduc-tion is achieved either with thePT 500.14 belt drive or the PT 500.15gear unit.

    The transmission of alternating torquein toothed gearing mechanisms can beinvestigated together with accessory setPT 500.15 (for investigating damage togears).

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    experimental modal analysis of mech-anical systems

    familiarisation with the envelope ana-lysis

    influence of bearing clearance andshock impact

    inconsistent torque characteristic wear measurement on piston rods understanding and interpreting fre-

    quency spectra use of a computerised vibration analys-

    er in conjunction with PT 500.15 transmission of alternating torque in

    toothed gearing mechanisms in conjunction with PT 500.14 or

    PT500.15 influence of gas forces on the vibra-

    tion spectrum

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016245244

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.17Cavitation in pumps kit

    1 pump housing vent screw, 2 pump housing, 3 manometer, 4 valve, 5 intake side hose,6 housing cover, 7 thumb screw to open the housing cover

    The illustration shows PT 500.17 together with PT 500 and PT 500.01.

    Software screenshot: frequency spectrum in cavitation

    Specification

    [1] investigation of the conditions for cavitation inpumps

    [2] single-stage centrifugal pump[3] valves and manometers in delivery and intake lines

    allow to set operating conditions including generat-ing cavitation

    [4] transparent housing[5] pump driven via coupling (PT 500) or with belt drive

    PT 500.14[6] accessory set for PT 500 machinery diagnostic

    training system[7] stackable storage system to house the compon-

    ents

    Technical data

    Centrifugal pump max. flow rate at 3300min-1: 17L/min max. head at 3300min-1: 12m impeller with 3 blades min. speed for cavitation: approx. 2240min-1 (with re-

    striction on intake side)

    Tank material: HDPE capacity: 20L

    Manometer delivery side: 04bar intake side: -11,5bar

    LxWxH: 600x400x320mm (storage system)Weight: approx. 16kg

    Scope of delivery

    1 pump1 tank1 set of hoses1 storage system with rubber mat1 manual

    Order number 052.50017

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.17Cavitation in pumps kit

    Description

    observation and measurement ofcavitation

    understanding conditions forcavitation

    Cavitation can play a major role in the vi-bration of pumps during operation.

    With the PT 500.17 accessory set,cavitation can be experimentally inducedand its influence on the vibration spec-trum investigated.

    The principal elements of the accessoryset are a single-stage centrifugal pumpand a storage tank. The pump and tankare interconnected by hoses. Valves andmanometers in the delivery and intakelines allow various operating conditionsto be set. The transparent plastic pumphousing provides a view into the interiorof the pump during operation. This en-ables the formation of cavitation bubblesto be observed. Stroboscopic analysis isspecially recommended (stroboscopenot supplied).

    The pump can be driven directly througha flexible coupling on the base systemPT 500 or by the PT 500.14 belt drive.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    observing and understanding cavitationin a centrifugal pump visually stroboscopically (stroboscope avail-

    able as accessory) by vibration analysis

    investigation of the operational vibra-tions of a centrifugal pump

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016247246

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.17Cavitation in pumps kit

    1 pump housing vent screw, 2 pump housing, 3 manometer, 4 valve, 5 intake side hose,6 housing cover, 7 thumb screw to open the housing cover

    The illustration shows PT 500.17 together with PT 500 and PT 500.01.

    Software screenshot: frequency spectrum in cavitation

    Specification

    [1] investigation of the conditions for cavitation inpumps

    [2] single-stage centrifugal pump[3] valves and manometers in delivery and intake lines

    allow to set operating conditions including generat-ing cavitation

    [4] transparent housing[5] pump driven via coupling (PT 500) or with belt drive

    PT 500.14[6] accessory set for PT 500 machinery diagnostic

    training system[7] stackable storage system to house the compon-

    ents

    Technical data

    Centrifugal pump max. flow rate at 3300min-1: 17L/min max. head at 3300min-1: 12m impeller with 3 blades min. speed for cavitation: approx. 2240min-1 (with re-

    striction on intake side)

    Tank material: HDPE capacity: 20L

    Manometer delivery side: 04bar intake side: -11,5bar

    LxWxH: 600x400x320mm (storage system)Weight: approx. 16kg

    Scope of delivery

    1 pump1 tank1 set of hoses1 storage system with rubber mat1 manual

    Order number 052.50017

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.17Cavitation in pumps kit

    Description

    observation and measurement ofcavitation

    understanding conditions forcavitation

    Cavitation can play a major role in the vi-bration of pumps during operation.

    With the PT 500.17 accessory set,cavitation can be experimentally inducedand its influence on the vibration spec-trum investigated.

    The principal elements of the accessoryset are a single-stage centrifugal pumpand a storage tank. The pump and tankare interconnected by hoses. Valves andmanometers in the delivery and intakelines allow various operating conditionsto be set. The transparent plastic pumphousing provides a view into the interiorof the pump during operation. This en-ables the formation of cavitation bubblesto be observed. Stroboscopic analysis isspecially recommended (stroboscopenot supplied).

    The pump can be driven directly througha flexible coupling on the base systemPT 500 or by the PT 500.14 belt drive.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    observing and understanding cavitationin a centrifugal pump visually stroboscopically (stroboscope avail-

    able as accessory) by vibration analysis

    investigation of the operational vibra-tions of a centrifugal pump

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016247246

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.18Vibrations in fans kit

    1 guard disk, 2 adjuster screw for gap between magnet and blades, 3 permanentmagnet, 4 fan rotor with 7 blades, 5 bearing block, 6 mass disk to simulate axialforces, 7 fan rotor with 3 blades, 8 fan rotor with 5 blades, 9 fan blade, 10 fan shaft

    The illustration shows PT 500.18 together with PT 500 and PT 500.01.

    Frequency spectrum of a fan rotor with 7 blades: clear blade passing frequency at 210Hz

    Specification

    [1] investigation of the vibrations of fans[2] model of an axial fan with blades[3] magnetic induction of blade forces[4] obliquely-mounted inertia disk to investigate gyro-

    scopic effects[5] 3 fan rotors with different numbers of blades[6] guard disk for fan rotors[7] gap between magnet and blades adjustable[8] can be used with belt drive PT 500.14[9] accessory set for PT 500 machinery diagnosis

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Sheet-steel fan rotor 3 blades 5 blades 7 blades diameter: 204mm max. speed: 3000min-1

    Protective disk, made of aluminium D=220mm

    LxWxH: 400x300x320mm (storage system)Weight: approx. 6kg

    Scope of delivery

    3 fan rotors1 mass disk1 holder1 guard disk1 storage system with foam inlay1 manual

    Order number 052.50018

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.18Vibrations in fans kit

    Description

    vibration measurements on fans simulation of blade-induced vibra-

    tions

    Vibration measurements on fans andblowers play a major role in field monit-oring operations. In addition to the usualsignals caused by bearings and imbal-ance, the vibrations induced by the fanblades can be measured. The vibrationsare induced by inhomogeneous flowfields.

    The PT 500.18 accessory set inducesthe vibrations magnetically. Three fan ro-tors with differing numbers of bladescan be investigated. A guard plate cov-ers the rotating fans. An obliquely-moun-ted inertia disk is used to investigate thegyroscopic effect. Just as in actual prac-tice, the fan model can also be drivendirectly via a flexible coupling or by thebelt drive PT 500.14.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration ana-lyser PT 500.04 is required. It includesall the necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    vibration measurement on fans measurement of blade pass frequency identification of the vibration induced

    by the blades from the vibration spec-trum

    effect of dynamic imbalance on the fan understanding and interpreting fre-

    quency spectra use of a computerised vibration ana-

    lyser

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016249248

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.18Vibrations in fans kit

    1 guard disk, 2 adjuster screw for gap between magnet and blades, 3 permanentmagnet, 4 fan rotor with 7 blades, 5 bearing block, 6 mass disk to simulate axialforces, 7 fan rotor with 3 blades, 8 fan rotor with 5 blades, 9 fan blade, 10 fan shaft

    The illustration shows PT 500.18 together with PT 500 and PT 500.01.

    Frequency spectrum of a fan rotor with 7 blades: clear blade passing frequency at 210Hz

    Specification

    [1] investigation of the vibrations of fans[2] model of an axial fan with blades[3] magnetic induction of blade forces[4] obliquely-mounted inertia disk to investigate gyro-

    scopic effects[5] 3 fan rotors with different numbers of blades[6] guard disk for fan rotors[7] gap between magnet and blades adjustable[8] can be used with belt drive PT 500.14[9] accessory set for PT 500 machinery diagnosis

    training system[10] stackable storage system to house the compon-

    ents

    Technical data

    Sheet-steel fan rotor 3 blades 5 blades 7 blades diameter: 204mm max. speed: 3000min-1

    Protective disk, made of aluminium D=220mm

    LxWxH: 400x300x320mm (storage system)Weight: approx. 6kg

    Scope of delivery

    3 fan rotors1 mass disk1 holder1 guard disk1 storage system with foam inlay1 manual

    Order number 052.50018

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.18Vibrations in fans kit

    Description

    vibration measurements on fans simulation of blade-induced vibra-

    tions

    Vibration measurements on fans andblowers play a major role in field monit-oring operations. In addition to the usualsignals caused by bearings and imbal-ance, the vibrations induced by the fanblades can be measured. The vibrationsare induced by inhomogeneous flowfields.

    The PT 500.18 accessory set inducesthe vibrations magnetically. Three fan ro-tors with differing numbers of bladescan be investigated. A guard plate cov-ers the rotating fans. An obliquely-moun-ted inertia disk is used to investigate thegyroscopic effect. Just as in actual prac-tice, the fan model can also be drivendirectly via a flexible coupling or by thebelt drive PT 500.14.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT 500.

    To measure and evaluate the experi-ment, the computerised vibration ana-lyser PT 500.04 is required. It includesall the necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    vibration measurement on fans measurement of blade pass frequency identification of the vibration induced

    by the blades from the vibration spec-trum

    effect of dynamic imbalance on the fan understanding and interpreting fre-

    quency spectra use of a computerised vibration ana-

    lyser

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016249248

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.19Electromechanical vibrations kit

    1 current measuring probe tap for the 3 phases, 2 connection to the display and controlunit of PT 500, 3 bearing cover with adjustable centering and scale, to adjust gap, 4 motorshaft, 5 adapter for acceleration sensors

    The illustration shows PT 500.19 together with PT 500, PT 500.01 and PT 500.05.

    Typical spectrum of an electric motorrotary frequent vibration with n, 2n because of balance errorpower frequent vibration with 2fe, 4fe because of magnetic forces

    Specification

    [1] investigation of vibration behaviour of an electricmotor

    [2] asynchronous motor with adjustable gap[3] asymmetric magnetic field by winding with shut-off

    facility[4] variable speed via frequency converter of base unit[5] speed display on display and control unit of base

    unit PT 500[6] power display on display and control unit of base

    unit PT 500[7] accessory set for PT 500 machinery diagnostic

    training system[8] stackable storage system to house the compon-

    ents

    Technical data

    Asynchronous motor with variable speed speed range: 1006000min-1 nominal power output: 370W

    Eccentricity of armature: 00,2mm

    LxWxH: 400x300x320mm (storage system)Weight: approx. 11kg

    Scope of delivery

    1 electric motor with terminal box1 storage system with foam inlay1 manual

    Order number 052.50019

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.19Electromechanical vibrations kit

    2E

    Description

    interaction of electromagneticand mechanical elements of thesystem

    adjustable asymmetric gapbetween stator and rotor

    electromagnetic asymmetry withwinding that can be switched off

    Asynchronous motors are in widespreaduse as drive mechanisms. These motorscan generate machine vibrations. Ifthere is an asymmetric gap, the circulat-ing magnetic forces induce rotationaland bending vibrations. The same ap-plies to partial failure of the electricalwindings. In this case, the asymmetricalmagnetic field also induces mechanicalvibrations.

    The PT 500.19 accessory set featuresan adjustable centering device to adjustan asymmetrical gap. A winding that canbe switched off generates an electro-magnetic asymmetry. The display andcontrol unit of the PT 500 base systempowers the asynchronous motor andpermits the speed to be adjusted. Themotor is subjected to load by thePT 500.05 brake and load unit.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    influence of the gap on vibration beha-viour

    influence of electromagnetic asym-metry on vibration behaviour

    influence of the load on the level of vi-bration

    influence of the gap on electromagnet-ic losses and efficiency

    influence of speed on vibration beha-viour

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    in conjunction with a current measur-ing probe measurement of current consump-

    tion per phase

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016251250

  • Machine dynamicsMachinery diagnosis gunt4 gunt

    PT 500.19Electromechanical vibrations kit

    1 current measuring probe tap for the 3 phases, 2 connection to the display and controlunit of PT 500, 3 bearing cover with adjustable centering and scale, to adjust gap, 4 motorshaft, 5 adapter for acceleration sensors

    The illustration shows PT 500.19 together with PT 500, PT 500.01 and PT 500.05.

    Typical spectrum of an electric motorrotary frequent vibration with n, 2n because of balance errorpower frequent vibration with 2fe, 4fe because of magnetic forces

    Specification

    [1] investigation of vibration behaviour of an electricmotor

    [2] asynchronous motor with adjustable gap[3] asymmetric magnetic field by winding with shut-off

    facility[4] variable speed via frequency converter of base unit[5] speed display on display and control unit of base

    unit PT 500[6] power display on display and control unit of base

    unit PT 500[7] accessory set for PT 500 machinery diagnostic

    training system[8] stackable storage system to house the compon-

    ents

    Technical data

    Asynchronous motor with variable speed speed range: 1006000min-1 nominal power output: 370W

    Eccentricity of armature: 00,2mm

    LxWxH: 400x300x320mm (storage system)Weight: approx. 11kg

    Scope of delivery

    1 electric motor with terminal box1 storage system with foam inlay1 manual

    Order number 052.50019

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 2/3 - 12.2016

    guntPT 500.19Electromechanical vibrations kit

    2E

    Description

    interaction of electromagneticand mechanical elements of thesystem

    adjustable asymmetric gapbetween stator and rotor

    electromagnetic asymmetry withwinding that can be switched off

    Asynchronous motors are in widespreaduse as drive mechanisms. These motorscan generate machine vibrations. Ifthere is an asymmetric gap, the circulat-ing magnetic forces induce rotationaland bending vibrations. The same ap-plies to partial failure of the electricalwindings. In this case, the asymmetricalmagnetic field also induces mechanicalvibrations.

    The PT 500.19 accessory set featuresan adjustable centering device to adjustan asymmetrical gap. A winding that canbe switched off generates an electro-magnetic asymmetry. The display andcontrol unit of the PT 500 base systempowers the asynchronous motor andpermits the speed to be adjusted. Themotor is subjected to load by thePT 500.05 brake and load unit.

    The accessory set is mounted on thebase plate of the machinery diagnosticbase system PT500.

    To measure and evaluate the experi-ment, the computerised vibration analys-er PT 500.04 is required. It includes allthe necessary sensors, a measuringamplifier and analysis software to re-cord the vibration phenomena.

    Learning objectives/experiments

    influence of the gap on vibration beha-viour

    influence of electromagnetic asym-metry on vibration behaviour

    influence of the load on the level of vi-bration

    influence of the gap on electromagnet-ic losses and efficiency

    influence of speed on vibration beha-viour

    understanding and interpreting fre-quency spectra

    use of a computerised vibration analys-er

    in conjunction with a current measur-ing probe measurement of current consump-

    tion per phase

    G.U.N.T. Gertebau GmbH, Hanskampring 15-17, D-22885 Barsbttel, Telefon (040) 67 08 54-0, Fax (040) 67 08 54-42, Email sales@gunt.de, Web www.gunt.de

    We reserve the right to modify our products without any notifications. Page 1/3 - 12.2016251250

  • Para Maiores Informaes:

    Rua Prof. Luis Freire, 700, CDU, ITEP -

    Bloco C, Sala 08 - Recife-PE

    Milrian Mendes Diretora Geral +55 81 99786-6527 milrian@setuplasers.com.br

    http://www.setuplasers.com.br

    Eliasibe Luis Gerente de Vendas

    Cel./Telegram/WhatsApp:: 51 9 9706-4541 eliasibe.luis@setuplasers.com.br

    www.setuplasers.com.br/kit4labs

    http://www.setuplasers.com.br/mailto:eliasibe.luis@setuplasers.com.brmailto:eliasibe.luis@setuplasers.com.brhttp://www.setuplasers.com.br/kit4labs

    Lab Dinmica de Mquinas - CapaG1.4 - Dinmica de MquinasInformaes Para Contato - ltima Pagina